If a Muslim persecuted a christian or any non-Muslim he is either an idiot, bulley or likely a combination of both. These are the reasons behind my points:
1- The main reason that people followed Islam or converted to Islam after their firm faith it is real is its humanistic nature. In Quran God says that " Do not cut short people's rights". He did not say Muslims, he said people. So all people and all their rights have to be protected.
2- There is no known case that Muhammad (PBUH) persecuted anyone for no reason. The people oppressed and killed Muslims they rightly fought them back. But for peaceful people Muhammad named the minority of people in a muslim country " The people in our protection". In Islam even money was given to non-Muslims and particularly poor non-Muslims.
3- Islam is a very civilized religion and survived all these years and took over a lot of religions because of its high values and Muslims themselves should be sure that no mean Muslims to harm Islam by persecuting non-Muslims.
4- A lot of Muslims consider non-Muslims as potential Musliums that we have to work to have people love Islam so they convert willingly to Islam. Even if they did not convert we did the right thing to our religion and to humanity.