Please stay on topic..No law was broken by firing Comey. Comey testified himself that Hillary broke the law and that he failed to carry out his duty and responsibilities as Director of the FBI. 'Nuff justification to fire him. 'Nuff said.
I DID stay on topic. In your 'fantasy' no law was broken. No law was broken by firing Comey, either. It was justified.
Comey also said that even if the law was broken there was no criminal intent, needed to get a conviction. Think of it like the person who drops a ten dollar bill, being cited for littering.
Think of it like a person with the gun in the holster walks into bank to deposit a check, but they give him all money instead, which he takes and walks away. No intention to rob the bank, it just happened that they give him a money.