You can’t prove that Bidens did anything wrong wrong either.
Not without an investigation.
If they did nothing wring, why worry?
1. That depends who is doing the investigation? Hint Guilliani.
2. That depends who is asking the investigation?
3. That depends the nature of the request of the investigation?
4. I will give you your money unless you do me a favor. That is bribery or extortion no matter how you twist it.
5. Why not investigate Shokin the corrupted Ukrainian prosecutor general?
6. Why not investigate John Solomon who created the conspiracy theory of Biden.