It's because I believe you are a sane and intelligent human, therefore fully having an understanding of what you see. This makes me believe that you can lie to yourself and fail to admit it, but you do see the terrifying reality. The comparison of Trump's supposed "decline" in comparison to Biden's is monumentally in Trump's favor. While his speech is childlike, it is not full of gaping holes during brain resets. The only time Joe makes it through any of these without it becoming impossible to avoid his decline is when he's had downtime, he calls it 'vacation', where he prepares (forever) and then only if he does not go off script.
You make it clear which way you vote, pretending otherwise is laughable.
I believe that if you think Trump is "declining" then you feel horrified watching Biden's brain go through a reset before your eyes and you know, down in your bones, that your choice is not just bad, it is horrifying.
Maybe you have missed Ken Buck's advice...
So here it is:
https://thehill.com/homenews/house/...cabinet-to-remove-biden-under-25th-amendment/
He's created a resolution calling on the cabinet to use Amendment 25 to remove Dementia Joe from office due to his obvious mental decline. I get that you like the flavor of the bathwater, but I'm certain that though you all never want to admit it you see it.