I get the mental decline. He's 80+. That should have been dealt with by the Democrats years ago. My question is why should that make me (or anyone) vote for Trump?

It shouldn't, but it should make you alarmed that the Democrats decided not to run a real primary to find someone who isn't in decline *now*, let alone four years from now! And that he seemingly has no intent of stepping aside of his own volition.

it should make you want him to step down and be replaced by someone who can hit the ground running and campaign in every state in order to beat trump elections are damned hard on the body and you have to have your candidate out there. surrogates don't draw real crowds

My partner’s decidedly-not-tuned-in-to-politics mother who hates Trump watched the first hour of the debate and decided not to vote. That’s the effect Biden’s age is having.

Did anyone say it should? There are, however, people who aren't so sure.

I don't want to vote for either. Give me someone to vote for.