They both want to pretend to be oppressed by powerful Others.
They both want to replace democracy with a totalitarian state.
They both want to place the entire world under their control.
They both glamorize death.
They both like that cool salute.
They both spend a lot of time on organized rallies to brainwash their populations.
They both rely on repeating lies over and over again.
They both regard the free world as their enemy, while they want to get as much money as they can from that same capitalistic society.
They both want to slaughter every Jew alive.
All just a coincidence, I'm sure.