@coldjoint,
1. You don't have to prove something fake. You have to prove it true. If you are making a ridiculous claim... it is your responsibility to prove that it isn't ridiculous. I can't prove that there is actually a video of Trump paying Russian hookers to urinate. You can't prove it isn't true. I still don't go around claiming that this is a fact.
2. We actually know where this exact tweet came from. You can google it yourself if you actually care about the facts.
3. Twitter is censoring things that are clearly false when it feels that the misinformation might inflame people. You seem inflamed.
4. I agree with you that Trump has turned people into liars and cheats. The solution is simple
check that something is actually factual before you pass it on as a fact.