Are there two categories of christians, that is christians that…

Are there two categories of christians, that is christians that are church goers and christians that are Christ like? Because I do wonder why everyone that goes to church sees their selves as christians even when they have not given their life to Christ and are not exhibiting the life of Christ. This is more predominant in Nigeria. When you meet someone to share the gospel, the next thing you will hear is am a Christian, you don’t need to preach to me, we are in the same faith. But when we look at the ills and vices in our society, they are been perpetrated by these sole called christians. So am confused if there are church goer christians and christians because one cannot be a Christian and not be a Christian according to the law of non contradiction. That is one cannot be a Christian and not exhibiting the life of Christ, is either you are a Christian or not. You can be both. I think have heard and also seen in the bible that the word Christian was first used as a result of the Christ like life seen in the life of the disciples of Jesus by the people of Antioch. I think church goers are unbelievers and shouldn’t be addressed as christians just because they go to church and hide under the umbrella of the church. That is why when they perpetrates any evil, they world will tag it to the christians.