Had the same case some time ago. We offloaded the passenger for not complying with safety rules. If someone gives a clear demonstration that he is not going to follow the rules, you know that you have a potential problem on board, and it is wise to offload him.
n our case, we refused the pax on our flight, and the Captain on the next flight would have been informed of the reason why the pax had been offloaded. Then it would be up to the Captain to accept the pax on the flight or not given the precedent.