I'll agree with a couple other people that your actual photo may not be a great idea - look at what Antifa keeps trying to do to Andy Ngo.

As for what you're experiencing, I am sorry to hear it but at this point its sadly to be expected. The modern left has lost most if not all principles, doesn't want to debate policy and position or anything like that. This video from right after Trump's election really sums it up I think.

How many times does the vote not have to go our way before we realize that our argument isn't won by hurling labels and insults...when will we learn that the key is discussion?

Sure, there's still a few people who make actual arguments, but the vast majority (especially on the Internet) really have no idea what is going on, they just recycle outrage headlines and talking points. Hence the NPC meme - they have a set of predefined talking points, every few days it gets updated, and if someone actually challenges it their brains just shut down and they resort to trying to attack the character of the person.