Okay this has derailed massively since yesterday.
But on my small part I emailed a number of prominent Women and the Diversity person in the Lib Dems. Raising my concern about the criticism in this thread and elsewhere.
And so far have received one considered reply. Which actually contains in it the true reason that some of you may feel unlistened to and fobbed off.
"Party HQ simply does not have any resources to keep up with the fast moving social media world in which we live, and with the best will in the world, no one from HQ will ever have time to read Mumsnet. I think we employ one single person on the social media side of campaigning. This does, unfortunately, leave a gap - which others rush to fill. I can only say that I do believe that this is a minority, albeit a vociferous one, and I hope that it is - and will continue to become - less and less prevalent in the party and that we will become much more diverse."
Which is the nub of the situation. The Lib Dems may have a large number of members now, but doesn't have many resources compared to Labour (union backing) or the Conservatives (wealthy backers and businesses). It doesn't have a large head office.
In fact the same issues are likely for any new "centrist" party and even I suspect for Macrons En Marche.
Without a huge party machinery, most things are carried out by willing volunteers. This means that any new member does have the chance to make a change, but also that not every message is tightly centrally controlled.
If those of you who are Lib Dems tear up your cards and leave then the party won't change. If you fight within the party then maybe change will happen. The Women's group seems a bit dead at present, but it could be re-invigorated to provide a check and balance to the group controlling LGBT+.