One thing that should be pointed out about John Birch's strategy is something that has been pointed out about "real" conservative strategies in the past: the liberals will hate them, no matter what. Reach out, try to engage the ultra-liberal left by compromise, and you get your head handed to you.
The folks who blindly follow the NAACP, Nancy Pelosi, Ted Kennedy, Chuck Schumer, Hillary et al are never going to like us. They're never going to give an inch of the ground they hold.
Thus, it makes no difference if "they" perceive John Birch as a racist, to the extent that he can afford to suffer financially.
They hate us. Always have, always will.
So be it.