Agreed. Bitcoin will suck the "monetary premium" out of real estate, making housing much more affordable, but there are plenty of reasons to rent aside from the cost of buying.

Maybe I intend to move to another state soon, so renting makes more sense. Maybe I'm saving up money to buy a house (since without a monetary premium that might actually be possible to do without a mortgage). Maybe I'm at a time in my life where I just want to pay someone to take care of everything so I don't have to think about housing.

What will go to zero is buying houses and doing nothing with them, hoping they will go up in value. Rental housing will probably have a big correction as houses become more affordable, but it definitely won't go to zero.