Satoshi once asked all of us not to switch mining from cpu to video cards, because it is bad to affect the basic idea of decentralization, but because of greed no one listened to it.
I do not see anything wrong with gpus to be used as mining, like I said, like cpus, gpus can be bought anywhere.
1. ASICS do not lead to any more centralization than anything else. Why do you think we have a GPU shortage? Massive farms running GPU rigs, including mine.
Like cpu anybody can buy a gpu and that cant be said for the asics. So with asics the levels is never an equal playing field. I'm against gpu farms but gpus come from nvidia and amd and concerning business practices, i would trust 1000000x more on amd and nvidia than bitmain or baikal or any chinese asics manufacture.