Fun fact: Biden has already pardoned thousands of people with marijuana convictions. Asking him to pardon EVERYONE when they may have had marijuana as a minor add-on to other criminal charges is a bit silly of an ask.
Biden doesn't run the DEA and can't force them to reschedule the drug. This is almost as dumb as the conservatives saying Biden needs to do something about border security then not being upset the Republicans have voted against every effort to do something about border security before it makes it to Biden's desk.
*the number of people in this country who think the President is a dictator and can literally just make up laws on his own is terrifying.