I got a quote from roto-rooter which was higher, but they seemed to offer the same solution. Can’t remember if I got any others.

I’m not a plumber but my understanding is reinstatement is the term for extending the lining up into any drains. It’s additional cost but wasn’t needed in my case.

I had this exact thing done with USA Pipe Repair roughly five years ago. Took them about half a day. No issues ever since. I even sent my own camera down out of curiosity and it looked like a smooth pvc pipe on the inside. I did not have any reinstatements done.

I don’t know if it works but try zip tying some rubber snakes to the downspouts or whatever you think they are climbing to get up there.

The cops arrest the perpetrators of gun violence. And your logic is that does not prevent anything?