You’re quite literally proving their point. You’re not meant to downvote things you don’t like to see. Your argument is also completely flawed. A block is a one time thing per community. So how are you tired of this? Without a block you’d be downvoting every single post that comes up from said community, which is constant work, which you somehow would not be tired of? Unless of course it is your goal to bully away the people from said community so they don’t post anymore at all, which again, just proves the point of downvotes being a tool for harassment. Maybe take some time to self reflect on your own behavior.
You don’t make sense. You’ve been told by me and even one of the admins that that’s not what you’re supposed to do. If you don’t like the content of a certain community, like those posting AI content, then you block said communities. Downvoting them would have 0 effect on you and your feed, other than being a waste of your time. Downvoting does not make the posts go away, it does not hide them, it just is a much bigger effort than just blocking the community, for literally no actual effect.