THR has members that come from both parties and sometimes a third or fourth party. If this was anti, insert your favorite politician or candidate, would it still be funny? Or would you feel like it was yet another instance of X taking a swipe at Y?
While I am fairly sure the op was only trying to share a joke we have to be very mindful that other members of THR May not find it as funny as we do. THR is for all responsible gun owners, not just those that dislike the current president.