YouTube adverts have been obnoxious for a long time, but it's got far far far worse this year. Unfortunately, I think it is necessary to support the media industry thanks to the diminishing returns from sales of music/film due to the proliferation of "art is disposable and very cheap" $9.99-a-month streaming services, plus the fact that every new album ends up on YouTube within a week these days as an "entire album" upload.
The sheer amount of content available these days is probably what you are noticing regarding dramas / films; I can remember very few decent Hollywood films recently as utter garbage seems to make billions of dollars, so the studios believe it's what people want.
It isn't a new issue though - "Penny Dreadfuls" were the old poor-quality entertainment of yesteryear where I suspect people were saying the same things that we are saying now. The only difference now is the availability of immense volumes of instantly accessible tripe.
As for political messaging, I am entirely apolitical but do see a lot of ideologies being promoted/pushed in programmes, with an opposing stance on any "modern" issue descending rapidly into a shouting match instead of a reasonable, logical debate; it then turns into a witch hunt regarding the opposing party's behaviour instead of a balanced discussion of the first issue raised. Exercise your free will and turn the rubbish off like I do!
