A contradiction in the liberal view of gender

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Still, suppose a person thought that gender was invalid.  So what, it doesn't matter what they think, particularly if it means something to some other person who doesn't think it's invalid and wishes to both live and be seen as x.  We can afford them that dignity regardless of our own positions.  W have an ethical compulsikon to do so, regardless of our own positions, as we have in the case of many other positions and desires we might take to be meaningfully invalid - such as the desire to live as a loony christer and be seen as a loony christer.

Fair. I accept that's a moral view of the issue. But I don't think this ideology assumes transgender people are 'loonie' and 'batshit crazy'. Quite the opposite, actually. It assumes there is a legitimate rationale to their desire to change genders.

You really, really need to come to some understanding and acknowledgement, in this convo, that you're discussing two entirely different things when you waffle on about validity after making statements regarding arbitrarity. 

adjective: arbitrary

1. based on random choice or personal whim, rather than any reason or system.
   

I don't see how it's inconceivable I would use this word to mean a belief is invalid and unsupported.