Earlier quoted context omitted.
That’s hardly the only option, still… Let’s assume we could kill off all the sociopaths, your point is?
My point is, your expectation of genes being directly connected with the good or evil, or with sociopathy, is naive at best and racist at worst, while at the same time you're using it as an attempt to deny the devastating impact of procreation on the environment.
A goldfish can’t be an environmentalist so some minimum cognitive function is required thus demonstrating a genetic component. Note however that doesn’t suggest a goldfish or a human with such extremely diminished capacity is evil. Your good/evil axis and environmentalism is thus clearly separated.
Even if you assume as you suggest there is some good or evil DNA suggesting “it’s racist” would imply a specific distribution of these genes along racial lines. Which is itself deeply offensive because it comes from a place of deep seated racism.
People of extremely diminished capacity are also still worthy of adoption. I could go on, but people as horrible as you should be shunned.