Earlier quoted context omitted.
> worked for black money and collect the social benefit at the same time This one doesn't apply to BI, since you get the same amount of BI money whether you work or not and regardless of how much you earn.
Yes. And it's paid for with higher progressive taxes. As taxes go up workers are increasingly incentivized to get paid under the table.
But that would happen anyway. If you are taxing the ultra-rich period, at almost any % of income, there are strong incentives when the taxable total is in the millions or billions to evade taxes.