Ehhh you might be underestimating their desire and capacity to do widespread illogical evil.

So much of the right’s “ideology” is based on insecurity and blind hatred, that genetic data could believably be weaponized for almost whatever they want. You’re definitely right that they think they get to decide who is a good American and who’s not, but why limit the consequences to deportation/disappearing when eugenics offers them much more permanent solutions?

Looking at the right’s generational project of clawing back civil and human rights, which has largely been successful, I can definitely see some right wing geneticist with a chip on their shoulder doing massive amounts of damage. There are no shortage of very intelligent people who do incredibly stupid and damaging things with their intelligence. Just look at American tech companies…