https://www.dailywire.com/news/biden-to-americans-who-own-guns-to-defend-against-tyranny-you-need-jets-nuclear-weapons-to-take-us-on
The point is that theres always been the ability to limit, rationally limit, the type of weapon that can be owned, and who can own it.
A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms , shall not be infringed.
noun
1. weapons and ammunition ; armaments.
noun
1. a thing designed or used for inflicting bodily harm or physical damage.
noun
1. a supply or quantity of bullets and shells.
If Trump had said this, it would be taken as a threat. Biden needs to study his constitution, or amend it, because as its written, arms can be anything. Scary times, Presidents talking about using American citizens to attack other American citizens. This is 2021, not 1861.