Is the data presenting as cats are bad? I see the data is pointing out how many bird deaths in the US are caused by different things. I'm pretty sure it's about turbines because no one cares how many birds cats kill.

https://www.statista.com/chart/15195/wind-turbines-are-not-killing-fields-for-birds/

Domestic cats are bad for wild bird populations, unequivocally, whether they are pets or feral. Like I totally get what you are saying though, and you're right, I'm pretty sure one of those studies points out feral cats kill birds at a rate of 3 to1 compared to pets. But those feral populations don't exist without the domestic pets which are uncontrolled beyond a county level in most places. At best spay/neuter programs reduce the number of unhealthy animals, but the US has kinda chosen to allow the nearly uncontrolled population of feral cats (which result entirely from the pet industry) to exist and kill birds.

I mean when when we try to control them we are more trying to reduce the amount of nuisance feral cats represent, they aren't like feral dogs, which the US treats very aggressively in most cases. Feral spay/neuter programs understand that the cats will always exist where there's food resources, so keeping those populations under control and healthier is the main purpose. They don't do the forests and shit, and they don't care how many birds those cats kill.

You can realize your indoor only cats are not necessarily killing any birds, so the birds your cats kill is 0. Responsibly owning indoor pets is the best way to do it, but again, we don't care in the US how many birds cats kill, it's a passing figure to us. Not like New Zealand where they are very protective of their wild birds.