Every single wealthy civilized country already has a social safety net in place, including the USA. UBI is a more efficient, cheaper and much less bureaucratic way to implement a social safety net than any existing alternative.
If you're against having a social safety net, go ahead and say that. I can disagree with you but I respect your point of view. But to categorically reject UBI just because "it's paying someone for existing" is plain stupid. That is already done in all Western countries. Only in the current system, an army of bureaucrats is needed to do the paperwork.
It's impossible to replace the entire welfare system with UBI, but it would alleviate a lot of problems establish an automatic income floor of some sort using UBI or negative income tax.
Umm cheaper? How so?
Anyone with no or very small income of their own is entitled to some type of benefit anyway. What happens now is that they have to file an application, which is processed by a bureaucrat who decides whether or not to accept it. UBI would establish an income floor, which we already have, but with minimum bureaucracy. It would be cost neutral even without the advantage of less bureaucracy because everyone's income tax percentage calculation would factor it in as income. Income tax percentage as a function of income can be computed in such a way as to make UBI neutral in terms of after tax income for everyone above a certain reasonably low threshold.
A UBI would increase any state budget by about 50%. I.e. in the US a UBI would cost about 2 trillion, with an overall budget of 4.
So what you are saying just does not add up. What you are describing would be correct if the UBI would be $100 per month vs $1000.
Yes, but taxes would be increased and benefits cut down commensurately. The net effect would be zero for the vast majority of tax payers as well as states. It's really just a technicality designed to reduce bureaucracy in the distribution of welfare benefits and not some mechanism intended to increase income transfers as a whole.
UBI would replace significant parts of the current welfare system. How much do you think the system we have costs to run?
In Finland, the lowest level of unemployment benefit is about €550 per month (there are other benefits on top of that). What I'm suggesting is that unemployment benefits and any other benefits someone might receive instead of unemployment benefits such as state-paid minimum pensions be slashed by an amount equal to the UBI. The average and high-income people would technically receive UBI as well but their taxes would be hiked commensurately. There would be no change in the take home earnings for most people.