It is wrongly propagated that Qur’an encourages violence against non believers, rather contrary is true, it is mentioned:
“It may be that God will ordain love between you and those of them with whom you are at enmity. God is Mighty, and God is Forgiving, Merciful. God does not forbid you to be kind and equitable to those who had neither fought against your faith nor driven you out of your homes. In fact God loves the equitable. God only forbids you to make friendship with those who fought you on account of your faith and drove you out of your homes and backed up others in your expulsion. Those who will take them for friends are indeed the wrongdoers.”(Qur’an;60:7-9).
Islam only forbids Muslims to take unbelievers as ‘protecting friends’ (those making mockery of faith, Qur’an;5:51,87). Only God, his messenger and true believers are their ‘protecting friends’ (Qur’an;5:55, 56).