Tax rates for wealthy folks are what, 10%? It makes a big difference if the majority of money that is made is distributed to the people via salaries, or whether it's profits and only 10% makes its way to the people.
Sure, you could take wealth away from billionaires, and sometimes there are good reasons to, but it's weird to pretend that it will cover more than a tiny tiny fraction of a government's budget.
I can't tell if it's naivety or dishonesty.