I disagree, i think it makes it possible for 3rd parties to succeed, maybe not in practice, but at least theoretically, which is a worthwhile change. But let's grant that that's all it does... that's still a good thing and not worth opposing.

At a deeper level, representative elections always result in an oligarchy. The wealthy / economically dominant classes are the only ones who have enough money / prestige to finance their campaigns and win the popularity contest. It makes any political system based on elections nothing more than political theatre.

Yup, I agree with all this, but i don't see it as a reason to oppose better election systems.