Breitbart used to be highly liberal. It was because some conservative was willing to engage him and not give up, did he become conservative.
People like Ayers might be an unyielding liberal, but not everybody who would read about Breitbart’s dinner or watch a prominent conservative engage a prominent liberal is equally unyielding.
You want to gain ground in liberals, you have to engage them and do it without apology.
Do you seriously not know that Ayers was and still is a revolutionary communist?