Ayers deserves no place in the public forum. All self respecting institutions should shun him. He is allowed to espouse whatever obnoxious ideas please him, short of direct incitements to crime. But we don't have to provide him a platform and alumni and students have a right to withhold contributions and applications from institutions that embrace him.
Noam Chomsky is a total fraud on so many levels and an embarrassment to MIT, btw.