Everyone's contacts are already out there on the internet, the cat's out of the bag and you can't change that by going way out of your way to keep your copy air

Everyone's contacts are already out there on the internet, the cat's out of the bag and you can't change that by going way out of your way to keep your copy air-gapped. The real issue is are you getting value in exchange for handing over your data? Amazon's service isn't something that normal people use to contact friends and you can't get usable directions to a contact's address with Alexa, so IMO the ROI is pretty bad.