UBI redistributes money. The total amount in circulation doesn't change. So the deflation argument really comes down to: if everyone has money, no one has money

UBI redistributes money. The total amount in circulation doesn't change. So the deflation argument really comes down to: if everyone has money, no one has money. I don't think that's the case. Even in the unrealistic case where we all have the same amount of money, we wouldn't spend it on the same things and that fact alone is a moderating force on inflation. Prices reflect people's ability and willingness to pay. In cases where we are forced to buy the same things, like housing, healthcare, and education, prices are out of control anyway.