The word "want" is the key there -- they have zero interest in what you 'want' to watch, they have every interest in what will compel you to watch for the longest time! Maybe a certain person wants to watch a few 2-minute cute cat videos, and subscribe to those exclusively. But research showed Google that those people's watch minutes per day can be tripled if you fill their homepage with "Trump did WHAT?" videos (or whatever effectively baits their rage, makes them more afraid, or stokes some addiction or anxiety).

If they give you want you want you might just enjoy it and leave satisfied. They don't want you to leave, what you want is largely immaterial except as an input to the machine designed to brainwash you into staying.