Earlier quoted context omitted.
UBI won't fix much for a far more trivial and mechanistic reason: adding $1,000/mo to everyone's income merely gives landlords the ability to charge ($1,000*n bedrooms)/mo more in rent.
Applying it to rent is arbitrary. The general point is that it is inflationary for all goods and services. That is assuming UBI is funded through government borrowing as we saw with COVID stimulus. If funded through new taxes the inflationary impact should be much less. (I don’t have enough economic training to determine how much less.)
Wages have increased far more than the price of food over the last 200 years, wage rises aren’t inflationary on their own.