Other then Cruz, who I have my doubts about, the entire field is GOPe except for Trump. So yeah, if you attack Trump, you must be GOP-E. Please notice I changed criticize to attack. I criticize Trump all the time, but I don't attack him.
Lots of Cruz people here. Also there are people here who criticize all things that are not conservative from any candidate.
So there are criticisms of Trump that aren't GOP-E and that are conservative.