Using Income-Tax Revenue To Subsidize Employers’ Labor Costs
I agree with everything you stated (with a couple of additions) except this. Those who make money with their money know how money works. At the federal level, "tax revenue" is an oxymoron for regular morons. In spite of all the media and traditional economists telling you otherwise, "YOU" don't create US dollars. Only your federal government can do that, and it never needs "YOUR" dollars to spend.
A consumption-based economy needs "consumers" who can afford to purchase the products it makes or imports. If the employers pay people sufficiently to allow them to do so their profits suffer. However, if the government can create the extra money needed between cost-efficient workers and semi affluent consumers the quandary is resolved "for the employers/capitalists".
A UBI doesn't work as a price setter, given that it is "universal" by definition. It almost guarantees to be wildly inflationary so it will never function as advertised for the working class. It will simply use them as a conduit between money creation at the federal level and the elite class. Good luck getting paid what your labor is worth while you are getting a check every month from your government, and good luck when inflation eats up the bulk of UBI benefits but you are on the hook still to provide your own insurance, daycare, etc.
Labor hasn't seen an increase in the minimum wage for so long that it is now just a cruel joke, so good luck in prompting your corporate-owned government to keep a UBI benefit at a level sufficient to release workers from wage slavery.
They will use the "tax revenue" scam as an excuse to keep the benefit low enough to make sure of that, and they will remove most of the safety nets now setting a bottom for workers to "pay for" the program, even though Congress can "afford" anything that can be sourced in the private sector, even without "revenue".