You can rebuke with love, in fact, correction is love; to allow someone to be held unaccountable offers them no reason to need God, that is a tenant of humanism. We cannot just un-write the passages that described Jesus' righteous anger at the temple, nor the assertive manner in which it was displayed. And yet, there was love in that action, his love for his people that the money changers and sacrificial animal dealers preyed upon, and the love for His Father in his despair at how they soiled His temple.
And we don't have to turn ourselves inside out with guilt to those who have been offered God's love, but refuse it. Christ told us to stay in the places that are worthy and give them peace, but to those who don't welcome you or listen, leave and shake the dust off your feet. there is no need for this angst that Christians heap upon themselves because chastised liberals co-opt scripture and say what bad Christians we are because we are judgmental and don't model Christ's love when we offer His message of salvation, but also His requirement of confession and repentance.
For the most part I agree with you, but I’m specifically not watering down the teachings here. For example, everyone knows Special Forces go through grueling training, with a lot of harshness. What’s not so known is that after the training starts the really nasty stuff is taught with a kind of gentleness and sensitivity - precisely because of how severe it is. Likewise it should be with the hard truths of Christianity, IMO. The Left sabotaged the teachings by watering them down and calling it love, instead of teaching that the hard stuff should be taught with love - totally different thing. The former creates cowardice, the latter creates courage.