But Biden can’t do that on his own. He needs Congress, which won’t allow that. The Senate may have a blue majority, but many of those Democrats are too conservative to pass meaningful legislation to address the issues you’re pointing at.
The U.S. won’t do anything meaningful until the Democrats have an overwhelming advantage and won’t need to compromise with domestic terrorist sympathizers and Christian nationalists… and of course the Liebermans, Sinemas, Testers, and Manchins of the Senate