City Council Speaker Christine Quinn is one of the signatories to that "other" letter about the Brooklyn College BDS panel. Given her own history of supporting official CUNY programming, I think she should rescind her name from that letter.
The action you have taken makes it all but certain I will never vote for you, regardless of your other political positions, many of which I wholeheartedly agree with. Your clear effort to suffocate free speech is despicable and indefensible.
There are only two reasonable approaches to what departments should be entitled to do: either they should sponsor and endorse events on all sides of controversial issues, or they should get out of the business of selectively sponsoring and endorsing only one side of such issues.