I’d be more likely to reply if you’d actually withdraw the argument. Say “You’re right, sorry, that was a dumb thing to focus on since it has nothing to do with the point about intellectual property. But the point stands.” Don’t just put the onus on me to “ignore the times I say something I can’t substantiate.”

Basically, if I know you’ll never walk something back from being convinced, you’re not arguing in good faith, and addressing the rest of it (something you can imagine I’ve wasted my time doing before in previous online discussions) is really not worth my effort.