I totally disagree that simply being "Christian" automatically makes anyone "closed minded" to everything. It only makes them "closed minded" to one thing. Just because they choose to believe in something deeply doesn't make them "closed minded". Maybe it just makes them "convinced".....Don't confuse strong conviction with closed mindedness. They are similar, but not the same.
the first two sentences contradict.

I'm sorry how many practicing christians do you know that read up or have researched other reiligions other than maybe a google search or a class they had to take. exactly.

now lets take you average christian, and i will quote chuck on this "50% of christians will not be in heaven"... i'm sure many of the people you know will fall into this, b/c they maybe your Xmas/Easter people or the Sinner Sunday people (sin all week go to church on sun)... i'm sure all of these people are top theologiest in their spare time

and back to what you posted... if you strongly believe in one thing then you are closed minded... if i'm wrong please explain to me what close minded means.