I think an easier way to think about the OP's point is that if you offer every person $1,000 a month (UBI), prices to live their exact same life style will increase by $1,000/month.

The net change will be zero.

There is an argument that while costs go up $1,000, if a true life changing event occurs, let's say sickness or entrepurship happen, maybe the person can scale down their life style from ramen to unflavored ramen and not be as bad off as with no UBI.