The problem is that commercial ad-supported websites force themselves into all available online spaces: search results, discords, social media, affiliate links on blogs. The only way to stop them doing so is to take away their source of revenue.

If ads weren't profitable, you wouldn't find no results for your search about which kitchen knife to buy, you would would find better, less weaponised, more relevant results. If you don't block ads then you are directly contributing to a world with more ads and less content.