It is not completely irrelevant. It is simply indirectly relevant. The reason people are keen to deny Reddit ad revenue is because the API issue pissed a lot of people off.
Ad blocking alone wouldn’t prevent sponsored posts from showing up, and sponsored posts are also ads.
Stop insulting people before you understand things completely. If you cannot understand other people and just think everyone is an idiot, you might want to get yourself screened for autism. And that’s not an insult, it’s a suggestion.