Wait there’s a tv show??

I’ll do justice to my name and ask just this silly question: what’s up with killing sitting us presidents?

Is this like a sport? Why does it happen so much? Are all those guys hated by most of the population, or just really really hated by extremists? In other parts of the world when it happens it’s to steer governance in a radically different direction - like military coups and the like - is there any similarity with us presidents removed by force? Or is it that its population is against democracy itself?

Am I making this a big deal and presidents get shot because that’s how Americans settle all of their arguments among themselves?