Like Eugene Volokh, I don’t agree with the politics of this gag, but overall it looks like something I would have done 20 years ago if I had had a Mac, Photoshop and, er, talent.* (Invitations to parties at my home in those days were generally sent out as movie poster spoofs.)
*Not that I’d buy a Mac today, nor that I have Photoshop or talent along these lines today.