People who take this mark will literally be demonstrating their worship of Antichrist, and they will know it.
This is where your argument turns in on itself. Even given all your other premises of belief, do you honestly believe that an RFID chip (or similar) under the skin connotates worship of the Antichrist? If someone can be "tricked" into getting this because they want to use the digital currency to buy food for their family, something that is good and proper to do, then the above sentence doesn't make sense at all. In order to have a choice between good and evil you need both a good choice and a bad choice. If your only choice is bad, then it isn't a choice and you will have been coerced into the decision. 1 Cor 10:13