Bitcoin started to be mined with asics on 2013, bitcoin value were at 40$ on march 2013, bitcoin went to 20k on december 2017, a 500x value, so if you say that asics makes a coin value to drop, you can see what happened with bitcoin and see that for bitcoin it was not true that asics were something bad, maybe for gpu miners on 2013 asics were bad news, but not for new asics miners who started a business and not for bitmain, and not for the bitcoin value.
https://en.bitcoin.it/wiki/List_of_Bitcoin_mining_ASICsUnscammed bitcoins asics were delivered at the end of 2013, december to be precise, before that too many scams and other things, most people paid huge sums of money and never received their bitcoin asic. Check the list.
Bitcoin crashed hard when the market was flooded with asics which was after december 2013. Most Chinese had free electricity and Europeans or Americans could not understand why the Chinese could sell their bitcoins so cheap. Check headlines and archives, it might help your mindless trollhead.
"Until late 2013, generic graphics cards and field-programmable gate arrays (FPGAs) were powerful enough to put you in the race. But that same year companies began to sell computer chips, called application-specific integrated circuits (ASICs), which are specifically designed for the task of computing the Bitcoin hashing algorithm. "
https://spectrum.ieee.org/computing/networks/why-the-biggest-bitcoin-mines-are-in-chinahttps://www.buybitcoinworldwide.com/mining/china/https://medium.com/@evawxiao/cheap-electricity-made-china-the-king-of-bitcoin-mining-the-governments-stepping-in-118c20725f7b