Maybe try telling that to the Apostle Paul.
After all, he got in Apostle Peter’s face publicly - TWICE.
I do not define love by how nicey nice and ‘understanding’ we are in the face of evil, or my tone being seen as compromise with sin and blatant wrong doing. Neither does scripture.
We have authority to call sin and evil and wrongdoing what they are. We have authority to show people “this is the way, walk in it”. We have authority to urge the faithful not to abandon their faith or principles. You might see that as an unChristian ‘tone’, but I don’t.
I don’t know how many different ways there are to say this.
“Though I speak with the tongues of men and of angels, but have not love, I have become sounding brass or a clanging cymbal. 2 And though I have the gift of prophecy, and understand all mysteries and all knowledge, and though I have all faith, so that I could remove mountains, but have not love, I am nothing.” (1 Cornthians 13: 2-3)
“Meekness, temperence; against such there is no law.” (Galatians 5:23)
On the cross where he died for our sins, Jesus Christ showed there can be no justice without love.
“Nice” is a term from leftist progressivism.