The fact that his retort is sarcastic, does not mean that he does not have a point. His point is that someone will be subsidizing his existence, and pointing out that nobody would want to do it, if they were faced with that reality, directly.
No, I'm not willing to implement one tiny wealth transfer that could conceivably be part of a Basic Income scheme. That would be stupid.
However, if it were possible to magically enter into a voluntary but binding pact with a large enough group of people to make Basic Income work, then I absolutely would do it even if it would mean lower income for me.