That's not it, but I can see how someone who probably supported every fake news story about how terrible Trump's kids supposedly were, would be prone to believing something like that.
I can't speak for the OP, but when I post something similar in theme (not the exact same content though, because other than the influence peddling with his Dad, and the sexual abuse of children, I absolutely could not care less what Hunter Biden does or has done...) it's because I'm illustrating (for the uninformed / ill informed) the incredible hypocrisy of the media and big tech, which both buried the HB / 'Big Guy' influence peddling facts, and also those on the left who support the media and big tech for having done so.