Why do FedEx/UPS/USPS continue to leave packages outside?

I’ve had yet another package stolen from my front door, I have “signature required” to try to prevent this from happening (so not a big deal to me cause it’ll be resent). But it just feels like a futile effort at this point to deliver something on a front porch where it’s pretty much guaranteed it’ll be stolen (along with maybe your car/ tires if you’re having a good day haha).

I guess until companies start to raise more of a fuss about replacing your stolen package their is no real incentive for the shipping companies to just continue this nonsense?