Competition does the exact opposite of centralization. That’s why I can buy most goods from completely different vendors that differ in price and quality.

Competitions have winners, and in this case it means the competition goes out of business and dies, leaving you with a near monopoly or outright monopoly.

That power then gets used to

lobby (bribe) the government to raise barriers to entry to prevent new competitors
buy out new competitors
intentionally price everything lower than competitors, at a loss, to kill competitors in a war of attrition that they can't possibly outlast

And that's even assuming there's any competition at all, which often isn't the case with certain things like healthcare, internet, electricity, etc.

[–] Realitaetsverlust@lemmy.zip 1 points 2 weeks ago

Not really? Competition might cut into your profits, sure, but that doesn't mean you're going to be bankrupt. Just because dyson vacuums are amazing doesn't mean stuff like vorwerk is dead, right? They still exist and are very profitable.

I'm not saying that the ones at the top are not using their power and money to lobby and stuff, but that doesn't really seem like a good argument to me why we should switch to communism instead of just fixing the issues we currently have lol.