I've been seeing this take from a lot of JC stans or in general the MDZS fandom that it was relatable when JC was constantly compared to WWX and his achievements and never able to catch up to him, since many people have been in that unenviable position of always being compared to the high achiever.

And I too have always been compared to my bright older sibling in terms of academics, life achievements, social skills, looks and in literally everything she is and has, but I still don't relate with JC in regards to that.

Because what am I supposed to expect from my sibling? That she downplay her talents and capabilities for the sake of my self worth, and self confidence? That she toss away all her achievements and all her hard work to get where she is just to make it easier for me to catch up to her? Was WWX supposed to do that, just so JC didn't feel inferior? (Which he did, by the way, always treading on the line of caution in that Jiang household between tolerating Madam Yu's abuse and always having to placate JC so his fragile ego didn't collapse.)

And I did build up resentment and anger, but not towards my sibling, because even as a preteen I recognised that it wasn't her fault. The fault was with my parents, who should've known better than to raise a child like that, always putting them in the shadow of their older sibling.

But JC let his resentment and hatred control him, listening to his mother's poisonous words and taking them to heart because that's the kind of person he is. It was natural, understandable even, that he might build up resentment and self worth issues being constantly compared to the genius in the sect. It was alright if he felt like that.

What was NOT alright was when he let his negative emotions get the better of him and control his actions and judgement. JGY, master of manipulation, points this out himself, that JC's issues with WWX were so apparent that the other sects barely had to do anything to get the man to decide to cut ties with him, exactly like they wanted.

It is NOT alright when YOUR emotions and jealousy harm the other person when they've done nothing but exist to deserve it. No matter how understandable or relatable these feelings of envy are, they don't excuse his actions and the numerous inexcusable things he did towards WWX and in general.