IMO, life is too short to watch commercials, so even if they do raise the price for the US, I will keep it as I watch far too much YouTube to not have Premium.
I agree with that sentiment in every other source of media I consume, but I have a hard time seeing YouTube as anything more than a diversion and can't convince myself that it's worth a subscription cost on a par with, say, Netflix or Max.
The commercials have gotten out of control though and while I keep telling myself that should motivate me to watch less stuff on YouTube, it hasn't yet. Maybe it's just time to bite the bullet and accept that YouTube is a service worth paying for.
But seeing this and how Amazon has jacked up Prime fees over time tells me I'd regret it... This is how subscriptions work-- the hard part is getting people to buy in, but once it's all on autopayment people are really slow to turn it off.