Well it is not as much power as you think.
so Texas burns 80000 megawatts an hour for every ones uses.
I don't think it's that simple, those 80,000MW were not built over a year or two, it takes a lot of time and money to build them, in this
article they talk about a 10GW power plants for $18 billion which means a single 1000MW plant would cost $1.8 billion dollar, that's hardly enough for 50EH.
Phil was talking about consumption,so let's go on with the bad news, Texas has a net capacity of 148,900 MW!
So they would have spare capacity, of course ignoring consumption curves of about 2-3 times of the hashrate at 20 watts efficiency.
The points you have raised would be valid if the plants weren't here, nobody would go building them from scratch, but when you have 2.4GW behemoths waiting for a buyer or higher electricity prices, it becomes far easier.
And that's just Texas!
Anyway, reading about Bitfufu aka Bitmain expansion of hashrate to nearly 30EH, it seems Bitmain is planning to go back to being a mining superpower and not just a major seller of hashrate, it would be very difficult for those large miners to compete against Bitmain especially now that Bitmain also operates mainly in the U.S.
Wait till you hear about the anti-trust laws, the army of lawyers those companies have, and the amount of lobby they can run.
Not even counting that we might have a "let's make everything in America' nutcase in office next year.