Yeah I'm saying cats can't be unbalancing the food chain as "invasive species" too much because they're down there on the prey scale with the squirrels, rabbits, and other small rodents like mice.

Except cats aren't nearly as capable or inclined to find cover and move from cover to cover like you see rabbits and mice do. And really the near-ubiquity of (particularly) rabbits and such these days, with the noticable corresponding surge of large predator birds in the area, demonstrates the point.