“”They are all extinct now probably due to hunting pressure.””
I don’t see hunting pressure as a reason for their extinction. At the time of their extinction there wasn’t much human presence or activity in North America.
Read about ‘Vero Man’ who was dug up in Vero Beach, Fl. Besides the poor archaeology, it’s an interesting story.
Apparently there was some activity and larger mammals down here in FLA.
https://en.wikipedia.org/wiki/Vero_man
“I don’t see hunting pressure as a reason for their extinction.”
Humans get blamed for everything, because we are the only species capable of blame, self-loathing and hypocrisy. Thus, we are the only species plagued by deceit (Marxism).