Especially when the difficulty is high enough so only big players will be able to profit from mining thus recentralizing the network to a few mining data centers
What advantages does a data center have compared an individual wanting to mine with one (or a few) machines?
What disadvantages does a data center have compared an individual wanting to mine with one (or a few) machines?
How does the amount of machines you have change your profit margins (which is what you seem to be suggesting)?
Hm... why do you think PoW is one of bitcoins greatest strengths?
It is the reason Bitcoin can exist and function. The alternatives have not proven to be superior, regardless of how strong one's opinion on the matter may be.
I guess you dont know that much about mining. Due to economies of scale, mining is no longer viable for individuals. Its the same reason you buy milk at the supermarket and not a milkman who delivers it fresh to your door everyday. Basically, the only companies making a profit in mining at this point are the hardware manufacturers themselves. Theres no fruit left on the tree that individuals can reach.
Personally, I dont have a problem with it as it all makes the network more secure.