Kurds are Muslims too. But they're okay. So are Indonesian. The ones who cause most trouble are the Arabs.
Well, now, Iranians are not Arabs.
Ask the predominantly Catholic East Timorese what they think of Muslim Indonesia.
Hint: The answer will not be “peaceful and friendly”, as is par for the course virtually everywhere Muslims interact with those not of their religion, when Muslims are in the majority.
Islam has bloody borders.