We do have laws, but they cannot be easily enforced because many of the scams originate in foreign countries who proxy to VOIP providers in the US to make the c

We do have laws, but they cannot be easily enforced because many of the scams originate in foreign countries who proxy to VOIP providers in the US to make the calls. Some of them, like the Microsoft scam, even conscript unwitting people into the job and/or threaten them to do it, while telling them that it's not a scam because everyone in the US is rich and don't need all that money. Maybe Germany just isn't a desirable target for them.