You should make a followup meme with the word "cis" instead. I don't think most of this stream understands that the overwhelming majority of violent criminals are cis.
Of course, there are many fine cis people. (See! Doesn't that sound terribly condemning?) -- Do yourself a favor and don't take the radical right's word for the shooter's identity, motives or meaning. They'll mousetrap you into thinking that minorities (sexual, ethnic, gender-identity, religious, et cetera) need to apologize for their very existence.