It's not unloving to be intolerant of aberrant beliefs.
And as far as the mocking goes...well, Elijah is a hero of mine:
"And at noon Elijah mocked them, saying, “Cry aloud, for he is a god. Either he is musing, or he is relieving himself, or he is on a journey, or perhaps he is asleep and must be awakened.” (1 Kings 18:27)
I wonder firstly the sense of indignation at the word hypocrisy.
If indignation is about someone saying all sin every day, while another says specific sins, identified
and specified qualify as sin, which need to be repented of and set right before God.
The first is saying the second group are lying to themselves. Now lying only occurs if the same principle
is accepted by both parties. Calling someone guilty of something they do not accept is not a valid
definition of hypocrisy. Hypocrisy occurs where someone contradicts their own morality, so claiming on
thing while doing another.
This problem occurs when speaker cannot accept anothers framework. So to a vegan, I am murdering
animals, yet I do not feel guilt, nor should I. If a vegan wants to kill me for murder, then they are
committing a crime of equivalence.
So the disdain being expressed here is not Godly or biblical. I have seen some take this so far as to call
ordinary faithful believers in Christ the most evil people in the world. This is where this disjointed thinking
ends up, and is a sad reflection on a desire to hide sinful behaviour under the umbrella of grace.
Jesus rather calls all who follow Him His Holy people, washed, cleansed and purified.
And if these people one cannot love as He loved them, then you do not know God.