Any internet service provider needs to be completely neutral. Not only in their actions, but also in their liability.
Same goes for other services like payment processors.
If companies that provide content-agnostic services are allowed to policy the content, that opens the door to really nasty stuff.

You can’t chop everyone’s arms to stop a few people from stealing.

If they think their services are being used in a reprehensible manner, what they need to do is alert the authorities, not act like vigilantes.