Trump consistently accuses Biden of being responsible for all of the charges against him. That’s a lie, of course, but it’s particularly rich coming from someone who professes to believe in the unitary executive theory. If you accept the logic of that theory, Biden has every right to do what he is being falsely accused of doing.
Think of it as the flip side of Trump’s hypocrisy on the immunity defense, which, if taken seriously, protects Biden from prosecution if he orders Trump’s extrajudicial execution.