Supposedly, there were at least eleven plots or serious attempts against President Obama' life. There were several notable threats, plots, and dangerous incidents against President Biden which were investigated by federal authorities.   

I believe that neither Obama nor Biden were so intensely disliked by so many people as Trump has been. Times have changed. Trump has continuously and intentionally maintained a higher and more constant media profile (2015–2026) compared Obama and Biden. This is especially true due to folks increased exposure and reliance on social media platforms as a news source.

All Presidents get death threats daily. Few get shot at and/or assassinated during their term(s)

That’s a lot of syllables just to say “I’m upset.”

It actually had meaning but I can see you aren't willing to put the effort in. It's monday.

you pusillanimous pugnacious truculent troglodyte

That’s a lot of syllables just to say “I’m upset.”

watch me paste this pathetic palooka wit a powerful paralyzing perfect pachydermous percussion pitch

I can't prove anything is true which is why they are rumors BUT the reason these rumors persist is because of his past behavior. Notice how no one ever has accused Mike Pence of anything like this. This is the guy who cheated on every wife including fucking a whore on his desk while his wife was recovering in the hospital from giving birth to his kid. He also bragged about "grabbing them by the pussy." The list goes on and on.

No, the rumors persist because the left is desperate to keep this in the mainstream and in the voter's heads.  You yourself posted the comment about the 12 year old which wasn't true, or at least you couldn't provide any link to it.

If evidence existed on this, it would have been brought to light long ago.

And all that stuff you listed - cheating, whores, locker room talk, is NOTHING compared to kid stuff, and there's no evidence of any of that.