It IS perverse. You're having your eyes groped by strangers, all trying to get you to do what you have no desire to do. You just want to get what you came for and leave, but no, everywhere you look something is trying to block your path and distract you from your goal. And it's not even honest: you already know that none of these extraneous, unwanted come-ons you're seeing is anything close to true. In some cases, it's a full-on mental assault.
It's vile. I used to leave some on, but now there's not even such a thing as "acceptable ads" anymore just because of the sheer numbers involved. So now I don't just block: I go full extermination mode. I'm usually on desktop so if it's a one time thing, like a single ad on YouTube that managed to sneak by all of my walls and filters and I can't just pass it by because it's stuck in my field of vision, I'll actually do an "inspect element" and delete it on the spot. But otherwise, if I can't block 100% or very close to it, I find a different site or source, or shut down altogether.
I genuinely don't think our minds were made for this level of constant information onslaught and never-ending manipulation campaigns, and I don't think it's healthy or life-affirming to subject oneself to it without limit. So I don't. People get angry about it, but hey, more for them to enjoy if that's how they wanna roll.