Sharia, as per mandate by the Quran, allows for multiple religions to be protected under an Islamic governed nation. So it is forbidden by sharia to attack churches, synagoges, or other places of worship that are within an Islamically run state. Sharia is also about fairness and justice as we Muslims are commanded in the Quran by Allah to stand up for justice even if its against our own selves and families. Unfortunately many Muslims are ignorant of these commands. Additionally, extremists today get all the press coverage and this portrayal leads the naive ones to believe that Islam is inherently an intolerant religion. It is not.

There is no need for secularism if Sharia in Islam is practiced correctly. I say this as a former secularist christian myself.