Agree on both counts. What politics isn't identity politics? I recall reading something that someone wrote more than fifteen years ago about a 'class in-itself' becoming a 'class for-itself.' While post New-Left social movement theory has expressed the principle that 'identity' should be both the vision and practice of politics, an identity oriented paradigm is indeterminate - radical ecologists and anti- abortionists (I refuse to use latter's euphemistic self-identifier), for example.
Re. 'political correctness,' only guerrilla dramatists and monkey- wrenchers propose political stuff they think is politically incorrect. Metamorphosis of the term's meaning from signalling a person's adherence to a particular political line to being an ironic comment on a person's sectarianism to becoming a derisive description of 'the left' is an interesting study in power politics. Term did not gain popular currency through mainstream media until right-wing picked it up. All because feminism (among other political ideas) is the radical notion that women are people too.
For a politically correct critique of political correctness, Michael Hoover (who may be going over limit today but I've been away for awhile and trying to catch up)