I have adjusted my attitude and opinions surrounding various matters multiple times in the 7 years I have been on this board, and I'm sure I will experience and engage in more change. I wouldn't call Mort unreasonable, as the connotation is that a person can see but is being stubborn. Mort is ignorant. He can form neither a reasoned defense of his own position nor comprehend alternative positions (as he frequently "I dont sees" and "I cant evens").
He may not be entirely willing to listen to potentially ugly opinions draped in the regalia of rationale, but that's because he's committed in his beliefs. Commitment to belief can be a dangerous thing; but in Mort's case, I don't think he poses an immediate (or even distant) threat to anyone, especially not to anyone here.
We all eventually choose our sides, and at some point it becomes fruitless to chase the rabbit all the way down the hole because any and every position runs aground at its ideological origin. I think Mort knows this and sees a certain ethical value in maintaining his stance.
You can't accuse him of being ignorant, since it's clear he's educated himself. He might be myopic... but then aren't we all?
Fluidity of terms and identities from use to use, from one moment of feels to the next, renders one intellectually impotent. You "cant even" someone who cant even.
Perhaps if you pour cement into the mold as soon as any new meaning or term is posed...
Identity is fluid - I mean, it's a fiction for fuck's sake. The mistake the Left makes is in posing a plurality of identities whilst simultaneously participating in the conservative (in a vague sense) practice of solidifying those identities. The embarrassment of Rachel Dolezal isn't in the Left's critical response to her black act; it's in the Left's continued commitment to the cult of authenticity.
Those of previously marginalized status feel a compulsion toward definitive and concrete identity because they were denied it for a long time. Now the paradoxes and inconsistencies of identity are spewing forth because the Left wants to admit plurality but resist the fictive quality of identity. The truly radical answer isn't to admit that black, gay, queer, transgender, etc. are stable identities on par with "white heterosexual male." The radical answer is to admit that "white heterosexual male" is as fictional as any other identity.
That said, history is a powerful narrative, and it bestows credit upon an accidentally happy few. If the decision is to persist in our dream of identity so that historically marginal subjects get a shot at some kind imaginary authenticity, then so be it. It won't last; but the recoil will either be some kind of rejection of "abnormal" identities, resulting in an identitarian totalitarianism, or it will be the devaluation of identity across the board.
I'm for the latter. Most identities suck anyway.