BuzzFeed writes, GOProud — the gay conservative firebrands — thank Chris Hayes — one of MSNBC's liberal firebrands — for “refusing to be a part of rank bigotry.” Their target: The exclusionary policy that keeps GOProud from attending the annual CPAC conference. Via: tv.msnbc.com WASHINGTON — MSNBC host and liberal writer Chris Hayes jumped into the conservative debate over gay rights when he announced Saturday that he will not be accepting an invitation to speak at the conservative CPAC conference unless the conference allows the gay conservative group, GOProud, to participate. GOProud welcomed…