Because US Christians usually think that or “GD” is taking the name in vain, when it’s really outwardly saying the right things and going to church while also lying, cheating, stealing from, human trafficking, selling poison to their neighbors is what that means. Fwiw, I’m well aware that according to the scriptures, Ismael’s seed was also blessed. Besides that, if you believe in a Creator/Creatrix, S/he created all or didn’t. That means if your sibling demonstrably desires to live in peace as your neighbor, then you are to live in peace.