just admit it, you want stuff for free or other people to pay for it, that's not how it works, YT is not a charity
and car manufacturers don't make cars that can't handle fuel that is sold at the pump, it would be stupid. That +20 year old cars could maybe, sometimes, have minor problems with some modern fuel is a non-issue, there are old cars that can't handle lead-free fuel
On your first point. If something is offered for free, e.g. EEVblog forums and Videos. Anyone, me included, is free to use those services and view the videos. You can't start calling them names, or complaining if the respective owners of the business and/or individuals involved, have genuinely offered, free methods of accessing their goods and services.
If e.g. EEVblog facilities, were to change from a free model (where you can voluntarily contribute to EEVblog, by helping out on the forums, sometimes, watching or clicking on adverts sometimes, buying EEVblog branded items, and other ways of contributing, such as Patreon).
So, if in my example, EEVblog facilities, decided to become a paid subscriber only service and wanted £12.99 per month, in the UK. We could all make our own decisions, as to if to pay for the subscription or do without EEVblog, and its (possible) benefits, for the individuals involved.
On your second point. An older car, can be perfectly serviceable (i.e. usable/functional), and perhaps liked by people, who perhaps are retired, not that young, and it copes with all their typical driving needs, just fine.
Why should they be potentially forced to change it, because the powers that be, have decided to change the formulation of Petrol?
These days, changing a car, especially to a brand new one, can be extremely expensive. Even used cars, have become extremely expensive (relatively speaking). So I can well understand why some people would want to keep and run their older car.
I maybe should point out, Petrol without too much Ethanol (10%, E10), with at least 95% real Petrol in it (I think it is called 'Premium'), is continuing to be sold (but it might be phased out sooner or later, I'm not sure). But I've heard it costs a fair amount more, than what is now standard Petrol.
On balance, it probably is a reasonable change (Petrol), but I'm not 100% sure. Different people seem to say different things. E.g. Does the new Petrol, really lower MPG, or not?
Does it really damage cars?
I'm not really sure (without spending lots of time on the issue, which I don't want to do), it is difficult to know who to believe.