What does Hunter's actions have to do with his father?

As I understand it he's went off the rails a bit but what exactly does that have to do with his fathers ability to do his job? Surely as an adult his own actions are his own responsibility. If you hold Joe accountable then surely you yourself should be judged by the actions of your family when you apply for a job.

Perhaps even people should be sacked if a sibling, spouse, child does something bad. Hell, you could even be forced to pay retributions to clear your name if an ancestor was a naughty boy and kept slaves or something.

Thoughts?
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I don't think Joe is responsible for his son but I do think Trump is responsible for the actions of his base.
What does Hunter's actions have to do with his father?
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