They (the sensible and sane person) does not typically go to complain to their MP (or indeed, an MP 150 miles away from the establishment).
What a weird barrow you are now pushing!
So the woman complaining is a
liar
crank
not sane
not sensible
as well as all the ableist crap you threw out at her yesterday.
However, you miss something vital.
If the woman is going to complain to an MP, the only one she can complain to is her own. And it doesn't matter how far away it is to the source of her complaint.
Many MPs use their position to assist their constituents in issues that may have an impact on the general public as this issue does. You also do not know whether that was a complaint specifically about the Barbican or giving it as one example in addition to others.
This woman did what we all have the freedom to do. She used her voice to discuss an issue that concerned her with her MP. We don't have the details apart from that tweet. That is all.
It is YOU who have devolved into denigrating two woman, who are abusing those two woman in this thread with your descriptions and yet, you actually think that you are in the right here.
All you are doing is contributing in the overall attempt from activists to silence those who disagree. Your continued twisting this to what toilets are provided and not actually addressing the issues brought up in the tweet are clear evidence of that.
Just to sure, the tweet was this one:
I received this message today: “I was at the Barbican yesterday where there were male toilets, disabled toilets, and gender neutral toilets. I asked where were the female toilets as I am not gender neutral I am a woman and they laughed in my face. Women are being erased.”