If you are not aware, everything you get on your computer from internet, is only things your computer (browser in case of web) requested.

It's completely up to you - whether your computer will ask remote server for ads or not.

If you don't want to control what your browser request, then it's your fault.

It is insanity, really. If you don't want a brawl, you don't go to nigger ghetto shouting "fuck niggers". Same with ads.

There are tons of tools to cut ads, so just use them. There is even addon for automatically skippinng advertising done by video auther, like SponsorBlock. If you want to watch youtube videos, you even don't need browser, use videoplayer with yt-dlp and watch youtube videos in videoplayer program, even without fucking recommendations and any other shit from youtube page.