It is not okay to beat up gay people. However, wherever the sworn enemy of God is found we must eradicate this pestilence with all speed, lest the world fall into the hands of the wicked.
Who are these sworn enemies? Not all gays, but many of them are. Many are non-believers for the sake of intellectual pride.
Wherever we find them we must do away with them. This is how a just war is fought: respond to the enemy after being attacked, then defeat the enemy.