Lisa Severine Nolland is spot on.

Sinners came to sit with Christ as he sat and ate (Matt 9) and he was questioned by the Pharisees as to why he would allow that. Christ made it clear in Mark 2:17, “Those who are well have no need of a physician, but those who are sick. I did not come to call the righteous, but sinners, to repentance.”

Christ came to save sinners, that's the reason for his life, death and resurrection...destroy sin (1John3:8) and save those who love and obey him (John 14:21-24). We cannot say that we love and obey God if we do the opposite of his word. We're either with God or against him (Matthew 12:30, John 3:34).

Yes, we are to love others, but "love doesn't...rejoice in iniquity, but rejoices in the truth" 1 Cor 13:6. To condone the sins of others is doing a great injustice, not only to them, but to ourselves, "Let love be without hypocrisy. Abhor what is evil. Cling to what is good." Romans 12:9. We also have to keep from polluting ourselves by not condoning/partaking in the sins of others...Ephesians 5:1-21 goes into great detail about this very thing.

There comes a point when Christians will have to choose.
Matthew 10:37-39 He who loves father or mother more than Me is not worthy of Me. And he who loves son or daughter more than Me is not worthy of Me. And he who does not take his cross and follow after Me is not worthy of Me. He who finds his life will lose it, and he who loses his life for My sake will find it.