Never said non-Muslim  were 2nd class citizens, as some Christians & Jews  are considered, by the fact of the dhimmis. The tax on some non-Muslims, under Islamic rule. Nor am I ignorant of the  Quran.

The problem is, to many Muslims never  leaned the bloody lessons the Christians learned long ago. To stop killing each other & learn to live together.

Or to paraphrase St. Francis, "preach your religion, if necessary, use words". In other words let your actions speak for themselves. 

After all, we are all related, like it or not. And if we ever make it to heaven, we will have to live with a lot of people we have not liked on earth, forever.