Evil or Simply Wrong?

Yale law prof Stephen Carter defends the ACLU in Christianity Today:

I think the ACLU is wrong to oppose religious expression in the public square, but being wrong is not the same as being evil.  More to the point, the ACLU is often right about the First Amendment's free exercise clause, taking on fights that others refuse. It might surprise some critics that the ACLU defends the free speech and free exercise rights of, well, Christians. . . .

Yet I must confess that, although I am pleased to balance the record, defending the ACLU is not my primary purpose here. I am more concerned about a habit of mind that seems to be growing among my fellow Christians, both political liberals and conservatives. That is, we seem to mimic the secular world's conflation of disagreement with wickedness, as if not sharing my worldview places my critic outside the realm of rational discourse.

Rob