Why is iruma an opp? All he did was make friends and be happy?

Considering that Iruma has many connections with the other high ranked demons made them think he's the threat of the demon border patrol.

Let’s not forget that Narnia is in cahoots with the big bad evil in this manga, he’s using the demon border patrol as an excuse to cut Iruma down now. But it’s such a flimsy excuse everyone is giving him the side eye now