Not all terrorists are muslim.
But 99.9% are.
Not all Muslims are terrorists but nearly all terrorists are Muslim.
Not all terrorists are Muslim, but all Muslims are terrorists.
99.9% are terrorists the rest are former terrorists violently retired.
Moslems are currently the only group employing Terror as a political weapon. All terrorists in them modern world are Moslems. Not everyone who commits heinous acts is a terrorist. Historically The Terror is state sponsored random and ubiquitous violence against the state’s own people. By extension it can be the attacks by an organized group against a population designed to paralyze that population and conquer it. Terrorism is designed to eliminate trust between one person and another and thereby destroy the ability to resist.