Those seem incompatible to me.
(UBI means Universal Basic Income, giving everyone a basic income, for free)
It starts with the assumption that raising taxes is unreasonable.
Bringing taxes up to their 20th century averages is completely reasonable, as they were highest during the time period where actual business growth was the highest.
Do you think the majority of US citizens want higher taxes? There’s alot of de-programming that has to be done. Democrats, who are generally better than Republicans when it comes to this stuff (due to the low bar they’ve erected) aren’t necessarily full on board with tax increases.
Taxed at a flat percentage of income or progressively without caps, 75% of people UBI will be a net increase in income over what their taxes would increase. It should be an easy sell unless there is a lot of misinformation or demonizing of low income people.
Of course people also don’t understand how single payer would save most people thousands per year by cutting out all the for profit companies, since misinformation is such a problem.