Claiming Mr. O'Neill's post is "weird" is actually wildly biphobic.
Mr. O'Neill is saying in a world of no social media they would be unable to fend for themselves, hunt, or exist, and would all have to be his harem of subjugated male wives. It also could be accurate: we don't know the sexual orientation of these young men, they could possibly enjoy being subjugated to that man (I know I would), and since they are voting for Harris they are less likely to be hunters and so perhaps they would need the protection and hunting skills of a large alpha man like that in a post-apocalyptic post-social media society.
What if this guy isn't weird and it's the people reacting who are weird? Just because someone is a Republican because they are pro-gun and pro-small government doesn't mean biphobia is suddenly acceptable.