There are many issues Christians have over non-Christians such as abortion, politics, homosexuality, how to raise your family etc. Most Christians are so bent over proving their issues and snubbing their noses at non-Christians that they forget the ultimate goal of God. He loves all His children and He wants us to come to Him. We can not lead others to Christ by telling someone what they believe is stupid or shaming them for it. What they believe is apart of the sin that is still within them. Which is the same sin that was in you before you became saved. Which is also the same sin you still need to repent for in your walk with Christ. It may not be that specific sin but God sees sin the same so your sin is equal to their sin. "The wages of sin is death" All sin. We need to stop judging and start loving one another. If we lead others to Christ in a loving manner then everything else will come after.
The entire law is summed up in a single command: "Love your neighbor as yourself." If you keep on biting and devouring each other, watch out or you will be destroyed by each other. Galatians 5:14-15