“The precise reason that Biden is struggling to find top-dollar audiences is unclear.”
—The New York Post, in a report on the former President’s attempt to bill $300,000 per speaking appearance.
The “precise reason” is incredibly clear! Not only that, but the Post’s story is clear about what that reason is. For example, this passage: “Biden’s use of “colored” to refer to black people while speaking at a disability conference in Chicago earlier this week has some former aides hoping he will spend more time at his Rehoboth Beach house. ‘This was hard to watch,’ said one former White House official. ‘It felt like seeing someone you care about start to regress. We just wanted him to enjoy retirement like other presidents — not go out like this.'”
The man is suffering from progressive dementia, and has been for years. He was never especially bright to begin with. Biden has little or no influence now, and was an embarrassment as President. Decision-makers for any organization that paid $300,000 for Biden to stumble through a speech written by someone else would be liable for breach of fiduciary duties.
I suppose having him speak might be a draw for the same kinds of people who watched poor Anna Nicole Smith’s reality show, as the late obese and alcoholic model/actress/gold-digger stumbled through each episode, slurring her words and looking ridiculous. It was kind of like watching a geek bite the heads off of live chickens at a carnival: witnessing complate human degradation makes som feel better about themselves. But no carnival paid geeks a $300,000 salary.
I was trying to think of a former President of the United States whom I wouldn’t rather hear speak than Joe Biden. There isn’t any. How could there be? Yeah, it’s a real mystery why Joe’s agents are having trouble finding suckers willing to pay $300,000, plus expenses, for the privilege of assessing how far his dementia has progressed.
Ethics Alarms 
I can think of one appropriate venue for these spendy speeches of Biden. He could be a keynote speaker at a dementia conference. It could be called: “Exhibit A”.
Having Biden speak in public is elder abuse. The people who (are supposed to) care about him have an ethical obligation to prevent this.
The entirety of his “administration” was elder abuse. The principal perpetrator of which was Doctor Jill Biden and Hunter. They were the first graft organization to wield the presidential pardon. And boy, have they ever wielded it. They were bullet-proof.
Yes, it’s elder abuse. Even if, in his advanced dementia, he wanted to do speaking engagements, those who love him and/or manage him should have prevented, and going forward should positively prevent, him from doing any. Some kind of equivalent of taking away grandpa’s car keys.
Perfect analogy, proe. (Incidentally, I just figured out that your screen name wasn’t meant as a nod to Proethics!)