Please don't say BTC can't get 51%, of course it could.
If the government or some really rich person dropped a few million into ASIC's, Bitcoin would be done.
Government, sure. Some rich guy? Pretty sure, they don't give a fuck about bitcoin...Because they are rich

Not to mention, you'd need 1000's of high end ASIC's....If you know where to buy 1000's of high end ASICS, please, let me know. I want one.