Point out that what the Bolsheviks did to the Tsar's family is what Goblin Slayer did to the goblins.

"Did you support Goblin Slayer because he's badass? And those goblin babies were just going to grow up to be goblins? Those Romanoffs were going to do the same thing, grow up to be monsters. Best get them while they're easily gotten."

Then watch the sputtering and malding start.