The Bidens are just a bit more clumsy than most life long political families, who engage more or less in the same kind of corruption. There’s dozens if not hundreds of them. This will go away.
What will help it go away is the fact that the left could care less what the Bidens did. The only thing that matters is defeating Trump, regardless of how dirty and/or incompetent their candidate is. Also, the govt. bureaucracy will protect its own and its dirty money sources, adding to the impetus to make it go away. Remember, the vast majority of the government is democrat/socialist/leftist, where credentials and legality don’t matter that much.