Pushing for slavery? Hmmm....one can oppose Xiden without pretending that his evils are different than they are. Slavery, for example, would not allow one to have ANY transaction of cash. One is not paid for one's labor under slavery. Soooooo, some might say slavery is a little bit worse than what Biden suggests.

Sometimes hyperbole obscures the nature of an honest grievance rather than illuminating the nature of that grievance through comparison. In this case, It is probably enough to denounce these plans on their own (de)merits without reference to the institutionalized enslavement of people, or, say, the Holocaust or other historic tragedies.