mentsch1: Beis Din executing outside the normal rules, that you refer to, can do so for any widespread societal issue. If there’s a lack of tznius problem they can execute every woman in public with uncovered knees or wearing pants.
Have you ever seen a Walmart selling live crickets as food? I have. You can advocate executing half or more of the gentiles in the country for violating the Sheva Mitzvos against eating a living creature, and thereby being chayiv misa.
And as the Rambam defines Christianity as Avoda Zora, you can advocate it for all Christians, even the ones with a phobia of eating crickets.
And how many Goyim aren’t guilty at some point of stealing a pen in school or in the office, anyways, even if they aren’t Christian and don’t eat crickets.