Well, it’s not quite that simple- especially for an end user. I don’t have the ability to trace it- and even if I did most of the scam calls I get these days are from overseas voip providers. So I have to invest a lot of time to get to a U.S. based business that benefits from the calls. Even then, the tcpa may not allow you to collect (some state laws do)

It is difficult enough that there is a full on coalition dedicated to this (the trace back working group that’s mentioned by the fcc in this order)