And every time you answer it you have told them it is a good number and they can re-sell you number to other robo callers
If you do not know the number, then do not answer it. If it is a good call, they will leave you a message.
Yeah, they're scammers. "Free Healthcare for All" sounds like utter [***]. They're absolutely taking advantage of people who don't understand the Affordable Care act. I hope everyone operating these phones get felonies.