Why is the democratic party run so poorly?

I do not understand what is going on, not even conspiracy theorist have an explanation for me.

They run Biden who everyone knew was senile 4 years ago. Numerous clips of him being senile the whole time. Democratic machine poo-pooing Kamala the whole time acting like she is a total flop. Then they let Biden debate and of course he is outed as being senile. Why did they let him debate? Democratic machine is saying "anyone but Kamala" for a week and "we still need Biden" arguments that "it's not about the president but the people around him" emerge from the media. He is then forced to drop out in a weird behind the scenes fashion and Kamala is in. In comes a bizarre shift, everyone who thought she was lame is now talking about "joy" and "brat".

Then they latch onto this weird project 2025 thing, meanwhile they ignore Trump's actual weak positions. They continue to lie about Trump which is not needed, his campaign is not that strong you can just tell the truth about his positions to win. No need to lie and discredit yourself. He's actually a weak candidate but you would never know that because the media covers it up by trying to frame him as a Russian agent or Hitler reborn.

Unusual VP pick(Trump also did this) that appeals to almost no one?

Strange attempts to appeal to men including ads featuring gay actors pretending to be dads and mechanics? Said gay actors then boast on their social media about being in the ad, no one thought "hey keep silent at least until after November"? Every ad they cut has a weird issue like this.

Then they trot out Dick Cheney of all people? Known evil warmonger hated by nearly everyone, in an attempt to get votes from....who? They seem especially proud of this.

Meanwhile the Obama's are out there shaming black men for not being interested in Kamala which of course has the opposite effect than intended. Biden sabotages her every time he appears but they keep trotting him out as well.

Making the election look fake by pre-warning that swing states will take days to count ballets. Why open the doors for doubt like this?

A lot more than even all this, but this post is already huge.

It's like they are doing everything as wrong as they possibly can. I can't even come up with a theory as to why they have done most of this.