Yeah I am really confused why people are mad. Sure it sucks that something was free with no ads now has ads/isn’t free. But was it not obvious that YouTube is unsustainable without adding some kind of income, ads or subscription charges? This day was always coming. I am actually kind of surprised how long it took for YouTube to start combating ads blocks.
YouTube for all its faults, is an incredible service. I know of no alternative service like it. It costs money to run YouTube why should they provide it for free?