Another way to describe this depiction of “welfare” is “we should all pay with our taxes to keep the reserve army of labour up to date, so that the employers can keep all wages as low as possible”.
That would not be a fair or accurate description of how economic systems work. An educated and well trained populace is one most enabled to start new businesses and create new inovation, not just a supply of work force. So the idea that it keeps the workforce uptodate while ignoring the fact that it actually converts (over time) a large portion of the workforce into business owners themselves is a completely inaccurte idea and not at all in line with the reality of the situation.
In fact, I would be fine with that IFF taxes would be proportional to one’s income percentile: you are in the first income percentile (the poorest percentile), you pay 1% of your income in taxes; you are in the last income percentile, you pay 99% of your income in taxes.
Progressive vs flat tax is another issue and I wont address that as I dont want to derail things off on a tangent. But to be clear I am not arguing for flat taxes here so this is largerly a moot point.
Anyway, the real problem with #UBI is that, everything else unchanged, it would be completely cancelled by inflation.
No it doesnt work that way for two reasons 1) everything else is not unchanged, the act of educating the populace has mass wide spread changes on every aspect of economy for the better 2) it would not cause inflation as it isnt increasing the money supply. If you printed money to cover the UBI then sure, but when it is coming from taxes this is not a correct statement.
With a caveat: when the UBI becomes the new zero, governments would be able to blackmail people depending on it.
This caveat certainly has some validity to it.
Incidentally, this is also the obvious reason why many USA billionaires say they want UBI.
Honestly, I doubt you have any idea what billionaires want or what motivated them. And I suspect you have a very twisted/biased view about them that makes it impossible for you to make such statements objectively and accurately. Then again I’d say that about most people.