He is clearly not competent enough to be president. He is, arguably, barely competent enough to be a ventriloquist's dummy at this point, which is effectively what he is. We just don't know who the ventriloquist is.

Does anyone believe that he should have his finger on "the button" controlling thousands of nuclear weapons? If you were in charge of a boomer or a Minuteman III silos and you got a launch order purportedly from Biden, would you execute that order? If so, really? If not, what deterrent is currently in place?

If that's the situation, then he's not the president and should either step down or be replaced via mechanisms of the 25th Amendment.