It’s a binary choice between two candidates.
Harris has been a Senator and a VP. That makes her more qualified to lead the military than Trump was in ‘16, and as qualified as any POTUS whose previous experience was limited to the state level like Bush, Regan or Carter. HW Bush was really the only person we’ve elected since Nixon who had the prior experience needed to most effectively run the military.
The performance of Trump in Atlanta last night makes it very clear that he does not have the emotional and mental makeup of a person who should be leading anything, much less the most powerful country in the world with the most powerful military ever.
People like myself saw the debate and acknowledged that Biden had no business being POTUS for the next four years. Many of us, including those (unlike myself) with an outsized voice in the process based on their financial contributions, took action and made a change.
If the GOP were a rational organization, it would be doing the same thing right now, because Trump is clearly not someone who should be anywhere near the presidency.