That kind of behaviour is out of order - it's extreme and it's just not British.
......... sure, if you've been wronged, hit back hard but, to attack on sight while someone's going about their daily business - really?
That's about the same level as the ISIS mob that wanted their own caliphate.
I knew an old boy that recently died of cancer, he was Indian that moved here in the 40s - the first time that I ever met him, he told his missus off for speaking to him in Indian in front of me.
............ They were a nice couple and we became friends.
My Da