"Peace" or "Shalom" is a Holy word actually. Hence why we say Rest In Peace (Be With God). Peace means something like 'God's highest good upon you'. The Truth is a Sword in that it divides the Liars from the Just, the Evil from the Good. A 'Peacemaker' would be someone that brings others to reconcile and make Peace with God, not a truce with Sin.
Those who say 'blessed are the peacemakers' without giving the full context are not your fren; they just want to cuck Christians - keeping them away from God's righteousness. To make peace ironically creates much chaos and trouble at the start, so you better be Strong and Resilient. Maybe this is why the 2nd amendment comes right after the 1st.