Back when CRISPER was the new hot thing in science people talked about engineering invasive species to have gene drives such that they could only produce male offspring. Eventually there would be no females and the population would disappear.
Doesn't look like it ever got of the ground though.
Feral cats are a problem even if they are unable to reproduce, they kill a lot of animals.
True, but a problem with sterile feral cats is a one-off problem. It steadily decreases in severity, and after about 15 years, it ceases.