You're making a case for ASICS(and Bitcoin in general). Right now you have to spend a butt ton to get even a small percentage of the network.
But if you are a malicious actor, and have a butt ton of money to spend without skipping a meal or losing your yacht, you can buy the power to vote everyone out. That's unfair.
That's waaaay more difficult/expensive to do with asics than without.
How so?
You said yourself, a rich person could just buy up a server farm and attack. This actually happened to Bitcoin Gold which forked to an ASIC resistant PoW algo.
In what system can someone not buy the power to destroy Bitcoin?
None?
There is none, but it's more expensive with ASICS so it's more secure left as-is. Gotta get adoption moving though, it's a race against the clock.
