Apple doesn’t want to that because they make money from iMessage. Android wouldn’t want you to do that if they had iMessage. If you use Android and have RCS then you don’t need iMessage because you already have the features you want. Android only wants iMessage be opened so Apple makes less money. Don’t get caught up in their war. Use your RCS messenger and don’t be worried about what Apple has.
I am for sure one of the smaller number of people doing this, but I watch YouTube on my TV using the TV app. As a result I always had to watch ads. I wish I could avoid them. I suppose a could watch from an alternative and then AirPlay it to my TV, but that’s about it.