if the cellular carriers were forced to verify that caller-ID (or SMS equivalent) was accurate SMS scams would disappear (or at least be weaker). Google shouldn’t have to do the job of the carriers, and if they wanted to implement this anyway they should let the user choose what service they want to perform the task similar to how they let the user choose which “Android system WebView” should be used.

not everyone is opposed to seeing gore on their racism app

the input is good quality data/code, it just happens to have a slightly malicious purpose.