In a sense, steps have been taken to do just that, but not in courts. I am not a proponent of those efforts, but it is important to understand what is going on. Various payment systems are currently trying coordinate in a way to track those purchases. Naturally, once they are tracked, they eventually will be marked as risky and, in banks anyway, derisked in a typical bank fashion. The same approach is taken for porn.
And to all that cheer this one, because you happen to align with those values, remember that a tool is just a tool and can be used by anyone for anything.