Whether one agrees with Comey's politics is no more relevant right now than whether one likes Kimmel's jokes. This isn't about substance to Trump. He's going after them as trophies, as a demonstration that if he can take them down, the rest of us better not cross him.
The difference is that Comey refuses to acknowledge that, and will keep pretending that all the normal rules still apply.
Noble tragic ending for him, sure, but the a-hole will leave *us* with a worse authoritarian society that he refused to get his hands dirty fighting.