Think a little bit out of your box. it would not kill btc, it will decentralize it and make all again the part of the developing bitcoin. It can be done smart.
It would be impossible to get consensus when so much of the existing hash is being done by these hardware companies. It's logical that they built farms with significant enough hash power to prevent this sort of disruption from happening and to protect their hardware business. I'm curious how you would deal with that.
EDIT: Oops I managed to post in a thread whose primary purpose is for people to get their quotas for their advertising campaigns. The ignore button is getting hot.