Seeing ads can still affect you psychologically even if you don't click them.

Also lots of ads prey on people with worse impulse control who bankroll the rest of us who don't click ads. Similar to how casinos are bankrolled by the addicts at the slot machines or many games are bankrolled by the addicts spending all their savings on in game items.

Doesn't make me feel warm and fuzzy.

Plus there's something just aesthetically pleasing about an ad-free experience. I started paying for youtube premium to avoid ads and I must say its a much nicer experience.