If you think any version of reality has Biden pick Clinton for his VP, you're delirious. There would be no better way for him to tank his candidacy.
None of what you mentioned comes remotely close to the least of things Trump has done before and during his presidency. Some people are able to see past all of the horrendous selfish shit that man does, and it is only those people that he can count on for votes.
You can't say Biden is old and speaks bad when comparing him to a guy like Trump that literally does not know how to form complete sentences or phrases. They're both old AF, but if you look at Biden then Trump, it's quite obvious who is in better shape, and it's not Trump.