Kenen Malik tracks it:
In recent decades, faith has […] transformed itself into the religious wing of identity politics. Religion has, ironically, become secularised, driven less by a search for piety and holiness than for identity and belongingness. The rise of identity politics has transformed the meaning not just of religion but of blasphemy too. Blasphemy used to be regarded as a sin against God. These days it is felt as a sin against the individual believer, an offence against the self and one’s identity.
The Dish 