I think that if people have certain political leanings and CONSEQUNETLY keep in line with 'status-quo' opinions regarding a SPECIFIC issue, then it's just as fatal as being a narrow-minded religious zealot.
An interesting case (which mixes metaphors a wee bit) is when one hears progressive thinkers openly damning organised religion in the presence of Christians who are also comrades. What does this say about the condemner?
I agree that it can be easier to agree with your allies than your political/philosophical opponents. When you believe someone to be like-minded and then there is a point of contention, it's trickier to argue.
Keeping speaking up Rick! If your friends love you, they'll know you're just contributing to a discussion and that it's not a personal attack.
Callie