First of all, it's about an entrepreneur traveling to the US for a startup, which is directly relevant to a significant proportion of YCombinator founders themselves.
Beyond its direct relevance to the core founding audience of HN, it is not clickbait or wantonly inflammatory, and is clearly of interest to many based on the comment activity and votes.
I guess you can conclude that a few percent here likes Trump etc, but far from a majority
The best part of it all is that you can post like the above with no clear side chosen and the people whom it applies to will react to it negatively as well.
I think what's happening is that a lot of his constituents like him due to his personality, but they don't necessarily believe he is honest. So, they're betting on his dishonesty and using that as a justification for their support. Meaning, supporting Trump is really not so bad if you assume Trump isn't going to do half the things he says he is. Then, it's like you're supporting an almost normal candidate.
Could we at least elect someone likeable like Bill Nye if we're voting based on "personality"?
They want someone a bit stupid, who says stupid things. They want someone who’s an asshole because asshole is basically synonymous with badass protagonist.