I may be wrong, but I don't think there's any way a leftist made this poster:
However, satirical sign or not, there was 100% chance leftists would show up to the cathartic primal scream.
Did Intercom Inc CEO Eoghan McCabe, who donated at least $200,000 to Trump, put up this sign in San Francisco in order to troll lefties into screaming from a hill in protest of Trump's inauguration?
Sure seems like it!

Why always with the screams, liberal women?
P.S. Now check out our latest video 👇