“Let not the hatred of others toward you make you swerve to wrong and depart from justice” (Quran). Radicals/terrorists, justifying violence against non-Muslims and dissenting Muslims (Taqfiri) by misinterpreting religious texts, are in fact, defying Quran/Prophetic directives:
“Believers, stand out firmly for God, as witnesses to fair dealing, and let not hatred be allowed to commit injustice/vendetta. Be just: that is next to piety: and fear God. For God is well-acquainted with all that you do.” (5:8). And
“…let not the hatred of some people in (once) shutting you out of the sacred Mosque lead you to transgression (and hostility on your part). Help ye one another in righteousness and piety, but help ye not one another in sin and rancor: fear God, for God is strict in punishment.” (5:2)
The Prophet, who throughout his early life was horridly abused, attacked, tortured, but after victory over Mecca, directed against any injustice towards vanquished, never be transgressors and said “Today is the day of mercy! Today, God will honour Quraysh”, quelling companions chanting “Today is a day of slaughter! Today God will abase Quraysh”.
Seekers of retaliation i.e. extremists should be reminded of the piety, compassion, forgiveness, etc. the epitomic qualities of the Prophet which would end divide/hatred from the world, besides restoring universal peace, the real goal of Islam.