While I agree to most of the things you wrote, the reality is that there are many people buying MTX so even if I were to not buy a single cosmetic ever again it wouldn’t matter sadly, we all would have to stop at the same time to send that signal.
I used to not buy games because they had MTX in them and some of those games are still here today doing better then ever, so I stopped caring about it and if I enjoy a game I might spend some money on it.
I am not a fan of how their system is currently, but I know they need to make money somehow to keep things going so if it were up to me to sell all these things I would lower the prices on everything so more people could afford them and rework the entire shop so you can browse all the released items.