(1) Their higher capital cost, limited availability, and limited "appeal" promotes effective centralization of mining.
(2) Due to #1 mining rewards go to fewer an fewer hands, promoting inequality and centralization of wealth.
(3) ASICs increase the overall wastefulness of PoW currencies since they're e-waste. Mining ASICs are worthless for any other purpose, while CPU-mineable coins at least promote the production of things that are otherwise useful. If a miner liquidates a bunch of CPUs and GPUs they will see use on the market, while ASICs are junk.
(1) Their higher capital cost, limited availability, and limited "appeal" promotes effective centralization of mining.
(2) Due to #1 mining rewards go to fewer an fewer hands, promoting inequality and centralization of wealth.
(3) ASICs increase the overall wastefulness of PoW currencies since they're e-waste. Mining ASICs are worthless for any other purpose, while CPU-mineable coins at least promote the production of things that are otherwise useful. If a miner liquidates a bunch of CPUs and GPUs they will see use on the market, while ASICs are junk.