The simple standard for Christianity is how well we’re emulating Christ. So how Christ-like are we? Right now, American Christianity isn’t doing so great, which is why non-Christians can be—and often are—even more Christ-like than many self-professed Christians.
If political correctness is understood as a conscious attempt to avoid discriminatory actions or statements against marginalized people, it is a natural outflow of the Christian life. Christians seek to follow Christ’s self-sacrificial nature in all they say and do. 1 Peter 2:21 tells us, “For to this you have been called, because Christ also suffered for you, leaving you an example, so that you should follow in his steps.”