Several states are trying to pre-emptively stop UBI (Universal Basic Income), claiming that it is a vote-buying strategy.

As usual, the politicians have missed the point entirely. UBI isn't about buying votes (although that may be a short-term bonus).

It's about buying control. How long will it be before that free money is tied to your social and purchasing behaviors?

Since the 1970's, the federal government has used federal dollars to influence state-level programs (speed limits, education requirements, etc.)

UBI is an extension of fiscal extortion from the macro level to the micro level. The government will now be able to control individual behavior to an extent not dreamed of by history's tyrants.