Alexander,
If it is Trump's world now, blame Joe Biden as much as Hally, McConnell, McCarthy, etc.
Most Democrats do not want Biden as their Nominee. But Biden and his vanity knew better. With the assistance of complacents and cowards, mainly in Washington, the Democratic Party is now struck with Joe Biden.
The dangerous predicament was largely self-inflicted. Biden also elevated Trump by making him the centerpiece of his campaign.
It's likely messy (and not particularly democratic) if Biden steps aside now. However, to strengthen his chances in November, he could replace Kamala Harris with an exceptional communications talent to get him across the finish line.
I believe you read my "Biden Needs Help to Win 2024."
Many thanks. Best as always.