They talk big words and say nothing. It’s an argument method where they attempt to look good/smart and goad other people into looking angry. In this particular case, they want you to reply angrily and say “Look how intolerant they are to me, and I was just pointing out how intolerant they really were!”
Trans is short for transgender. Being transgender is not identifying with the gender assigned at birth, so I don’t see the issue with the foreword.