You cannot love your neighbour and at the same time condemn him for not believing the same things that you do, even though he harms nobody. That is not love.
Again, the condemnation thing...
We don't condemn anyone because love for God is that we know he speaks the truth.
The truth is that we do not single our or judge people...not even according to their sin.
If you see someone stealing... is it wrong to say they are a thief because they are stealing?
Is it a judgment or just telling the truth? But we are not condemning them for what they do.
So we would both agree someone stealing your goods or my goods were doing wrong.
But we are not condemning them or condoning their actions.
Because we do not steal, does that make us better people? Can we suggest that person is less a person
because they steal than we are?
The truth is because I am a Christian does not mean him being a non-Christian that he is condemned by me.
A thief harms but we all know someone whether knowingly or not, who have stolen.
Truth is society thinks that being a believer somehow condemns all who are not.
In reality Christianity should cause us to tell the truth and to love our neighbour.
It does not cause us to condemn.