If tankies and liberals would stop stabbing us in the back, then maybe us anarchists would stop infighting with them. Look at any anarchist history and it almost always is anarchists joining some sort of popular front, and then the statists backstabbing us the first opportunity they get. Spanish Civil War and the Ukrainian War for Independence being two perfect examples.
Personally I still work with statists, because I know I won't get far organizing if I entirely avoid them. But I keep them at arms length cause I'm not letting those leopards anywhere near my face.