Taking the conversation where critics aren't allowed to follow

A vigorous debate was sparked by my recent diary about the anti-trans letter that Cathy Brennan and Elizabeth Hungerford submitted to the United Nations.  However neither Brennan nor Hungerford were willing to participate in a meaningful dialog on Pam's House Blend.  Instead they've opted to post a response to some of the criticisms their letter has generated at Radfem Hub, a blog with the following rule:

The Radfem Hub has a woman-born-woman and female-identified commenting policy (both!).

This rule prevents men and trans woman -- the target of their letter to the UN -- from posting a comment.  I believe this makes Radfem Hub what is called an echo chamber.  It indicates that Brennan and Hungerford believe that they cannot make a convincing argument to those not already in full agreement with their views.  It is a capitulation.

Related:

* Cathy Brennan & Elizabeth Hungerford take their anti-trans activism to the UN

* No Matter Who Expresses The Sentiments, Antitrans Sentiments Are Antitrans Sentiments