[jaworrom]

Because the only way to create UBI is to take money from other people and redistribute it. Horrible idea. I do not want my hard-earned income and efforts wasted on those who wish to freeload. I'd much rather donate to charities and responsible non-profits, who will do a better job at supporting those who find themselves in tough situations.

[adjkant]

Perhaps you should look at this implementation of UBI. While there is more or less practical redistribution through inflation, no money will be taken from you via taxes and the like. One could even conceive of writing incentives against "freeloading" into the protocol.