The problem is that we don't know how many people have no interest in working at all at any salary. Some people would choose to not work than to get paid 62k a year at a job they hate. People who oppose UBI are afraid that no one will fill jobs that they think are essential.

UBI is not about "not working". It's about "here's some basic money so you don't have to worry every day about starving to death". Want to wear clean clothes everyday and drive a car? You're gonna have to work.

This is the point right here.

Every reaction to UBI discussions immediately assume UBI is trying to replace all income, which is very much not the idea.

It's a floor for society.

We currently have a floor (SNAP and food stamps, food banks, and soup kitchens, homeless shelters). UBI is about more than not starving.

Those floors are still pretty low as they don't cover housing. UBI is like, a food, shelter, and health floor.

Exactly, UBI gives the people an option not to work, but still survive