He was then pardoned. By his father. Is that really the example you want to use to show Joe Biden upholding the rule of law fairly?
I don't even think it is particularly bad, there is a standing convention that presidents can do illegal things and get away with it as long as it isn't too sensitive, apparently that extends to close family. So be it. But if that is the standard, that standard applies to Trump too. I mean, if Biden thinks that taxes are optional and he is responsible improperly storing documents himself then he has no business organising FBI raids of his political opponents for doing something a bit off. Or the follow up special prosecution, adding actual abuse of power by the Biden admin to what could maybe be brushed off as miscommunication or terrible optics up to then. He clearly understands that this is normal behaviour for someone in high office.
It is this weird dynamic where the left wing clearly understands that these behaviours are bad, but only choose to recognise them as such when Trump can be targeted. Is it so terrible to accept that it is also bad when any other politician misbehaves? Consistency is necessary to make the system hold together. Trump behaving in a manner consistent with the laws and of a high ethical standard would be really nice. It would be nice if any president behaved that way. We're still waiting for one that does. On the scale of presidents Trump scores pretty highly for good behaviour. He hasn't invaded a country under false pretences which makes him the best Republican president in around 30 years. We can speculate that any war crimes he committed were probably more accidental than the purposeful use of torture by the Bush administration too.
And then tomorrow someone will be arguing that these are the people who should control healthcare or education or whatever.