God only uses two categories, those who believe and those who do not. Those who beleive in the name of Jesus Christ as Lord will be saved and those who don't will perish.
Those who believe, we can call family. For those people who do not believe, we can invite them to join the family, because God does not want anyone to perish.
The next time you find yourself categorizing people, just stop and remember that God wants a large family and we are the ones that He uses to grow that family.
Don't categorize people just invite them to join God's family.