A ’25th Amendment Solution’ Is the Wrong Thing to Do
The main reason not to use it is that the real chief complaint against Donald Trump is that he threatens U.S. democracy not (chiefly) by breaking laws, but by undermining the norms which are just as important to democratic governance as the laws and constitutional provisions. And therefore efforts to remove him should be especially careful to abide by those norms [bold mine-DL]. The 25th amendment is for use in Wilson-like cases where the president is really, truly incapacitated. While mental illness could qualify, the many armchair diagnoses we’ve seen of Trump simply do not clear the constitutional bar.
.. he is not so physically or mentally disabled that he can’t discharge the duties of his office. He may discharge those duties badly, but that is an entirely different question and one that the amendment was never intended to address. Going that route would also require more support in the House than an impeachment vote would, so it would be even less likely to “work” in removing Trump.