Well, we still need the Western World. The US and EU are our top export destinations, not any Muslim-majority country even though we do export our products there.
Getting technological know how is also important. Particularly from the far eastern nations. The sooner the Arabs and Persians stop being so dependent on oil, the better.
Frankly speaking, the OIC is nothing more than an Islamic Tea Party. And a spineless one at that just like the American counterpart.
On the Rohingya issue, they were at first 'concerned', and then upgraded that to 'gravely concerned'
Although, I do advocate for better relations, stronger ties and most importantly - unity, which we lack. I mean, those Saudis and Iranis are up at each other's necks...lolz...