I wonder if this would now mean that European energy companies will have to allow other smaller companies to sell power in their own power lines or Cellular companies to share their communication trunks with independent companies and Even TV/Cable companies will now have to offer commercials from competing stations and channels.
better yet does that mean that now I can watch sporting events like football, soccer or the olympics on other stations instead of the companies that "monopolize" the content?
1. The thing you're referring to has an English name, and it's called "pure players". The notion of a pure player and the term have extended in Europe to commercial practices where the companies have no proprietary stake in the infrastructures they exploit, but are paying bigger companies for the privilege, and not just for internet providers.
2. Small companies do sell "power" using big companies' power lines. Basically you're doing nothing different and it's another company that does all the commercial aspect of the business, contracts, support, billing, advertising.
3. Cellular companies do use bigger companies' infrastructures and cell towers to sell service at a discount. I pay 8 euros a month for 40Gb of LTE data and unlimited communications plus extensive roaming coverage in the EU at zero cost. 8 years ago there was a "price war" between the 4 big phone companies in France that saw premium unilimited plans sold at 1€ a month for a year, so every year you would switch companies and virtually never pay anything. So they really don't care to pass on all that commercial BS to smaller players for smaller savvier clients and make more money.
4. There is nothing that prevents TV companies from advertising on other TV companies' channels, save for communication about programming. Cable TV, Satellite, and Streaming services do advertise everywhere, included BeIn Sports on Canal+, to name only those, when BeIn is a direct competitor to Canal+.
5. Train companies all run their train on the same rail, which they often do not own. That shouldn't be so hard to imagine for Americans.
6. Big sporting events are not "monopolized" when the rights are paid for, the same way Only Murders In The Building isn't monopolized by Hulu, but can still find a way to be exploited by Disney+ where Hulu has no streaming service of its own (this is an outdated example, as Disney has bought Hulu as of November 2023, I've just learned).
Rules about fair competition don't mean the end of property. It means using competition to drive prices down and create more riches and more investment in infrastructure.
If you look at Apple, you have the perfect example of a company who does NOT want to innovate OR be competitive.
