The US doesn’t pay taxes elsewhere so no retaliation required for that. Taxes are paid by people and legal entities. Those legal entities are subjected to rules and they operate by the rules. If the EU doesn’t like the double taxation rules it wants it members to adhere to, then it should change those guidance and rules. You can’t blame a legal entity for following the rules and choose to domicile in the most benecial location.
and no services aren’t refused to US citizens that is nonsense. Rules are simply applied when are one but reside elsewhere. Just like other rules are applied to other people.
TL;DR
You're wrong, start studying international tax law, world economics and world politics before you make mindless remarks.
The long version:
The US doesn't pay taxes indeed, but the US does make tax laws therefore the retaliations shouldn't be to the people or legal entities that follow the laws, but to the US that makes the law.
And I'm sorry, but your representation of the tax laws are wrong.
First, anybody with any US connection pays taxes over their world income. So if you where born in Belgium, lived there all your life, never went on holiday anywhere else, never earned a penny outside of Belgium, you still need to pay US taxes. Why? Because your grandparents where on a visit in the States and your mother was born 6 weeks early in the US. Therefore your mother has a US relation and right to a passport, therefore you have a US relation. This US connection is a bases for the US to tax the income you earn. This is called taxing on world income.
The only country that does that is the US. Oh, and Nigeria but do you really want me to compare Nigeria to the US?
People can not escape this: the US has this enforced by forcing banks world wide to declare US taxable people's income. If banks don't do that, the US will deny them access to dollar transactions, which in return will make a bank go bankrupt, so in effect you enforce it.
But following your advice to choose the most beneficial, I would say that most white Americans have European roots, therefore we are going to tax them on their world income, here in Europe, by European tax laws. So be prepared to pay us 58% of your income over your live long earnings!
But the real odd part is that the US-government also vehemently defends the rights of US corporations NOT to pay any tax anywhere in the world.
I will make an example of the double Irish with a dutch sandwich. No, this isn't a lunch sandwich with a nice Guinness.
It is a tax avoiding scheme where US corporations pay no tax in the country they earn their money, but neither pay tax in the US.
E.g. Apple sells an iCloud subscription in France. They do not pay VAT, they do not pay any profit tax in France, because they are "located" in Ireland. They have no substance in Ireland, or at least not any substance that is in line with their earnings. That is important because they can say that they are not really located there.
So what to do next? You don't want to pay the (lowest in EU) taxes in Ireland! Simple, you have a local entity that sells a service, then you send the profits to an Irish company, then on to a Dutch company and then back to a second Irish company headquartered in a tax haven.
These payments (that take out any potential profit) are on paper a payment for royalties, IP, minimal services etc. etc.
The end result is that there is a loss for the local entity that made the sale. So no taxes there and often a tax return or compensation for the loss.
Then there are no taxes for profits in the tax haven, so that is untaxed as well.
The real beauty in this scheme is here: US companies need to pay profit tax over their "world income". But they don't. Apple has at this moment a cash mountain of $252 BILLION in the island of Jersey. They can't touch this money, if they bring it back to the US they need to pay profit taxes. But as long as it stays in Jersey that's not problem.
So they wait until profit tax rates are lowered, and they are pushing hard for that.
But what good is money if you can't touch it?
Well, if they need money, they lend on the world markets with money on the island of Jersey as a security. They don't need to lend money, they have plenty from earnings in the US, but it can be cheaper to lend money for a ultra low interest (perhaps at times even negative, so you earn money lending) while they invest the tax money, earning them a bit as well.
That is how you don't pay taxes and earn money with money you shouldn't have had.
That is why France (and a few other countries) have introduced a e-commerce tax. And Trump didn't like that idea, so he retaliated by import taxing German cars (that did hurt), French cheese and wine (that hardly did hurt financially, but something to do with French pride), etc. etc. this in return went to the WTO, which Trump has made totally ineffective by vetoing appointment of judges as they might have slapped him on his tiny grubby grabbing hands. :-D
So the EU made a petty gesture back: you need 30% EU content on your streaming service because you'll wipe out EU culture. Or what ever dribble came from the EU commission for flimsy reasoning.
In the end it's all tit-for-tat petty behaviour, but it is about serious amounts of money. $252 Billion in profits was revealed in 2017 by the "paradise papers" and just for Apple. Imagine what Amazon, Google, Facebook, Insta, Snap and all the other nameless huge corporations have on that cash mountain?
Because this has nothing to do with quality, this is simply a tax on successful American companies that they hope will just give in to them. They just want these companies to subsidize their production and eat the cost.
Given that Apple has world wide rights to all their content, they could choose not to care about people accessing it via VPN and then offer the product for less money in the UK and the US, but charge more in Europe and make it very clear why.
You're wrong too in so many ways.