He can say whatever he wants, the mere fact that his advisors are trying to do this crap through executive order is basically proof that they know it will go nowhere. Legislation's not happening with the Senate as it is now, and the filibuster removal's probably not happening either. So Biden is just continuing to make himself look like a moron with this shit. Too many people understand the need to own supposed "assault weapons" after the riots last summer too, further gun control at the federal level is dead in the water.
Furthermore, the one gun control proposal that actually got through during the previous administration has already been ruled unconstitutional by the federal appeals court in Ohio.
https://thefederalist.com/2021/03/2...es-trumps-bump-stock-ban-is-unconstitutional/ Further attempts on the Dem's part to push gun control could easily backfire and get more laws struck down.