[jfager]

If you took out the references to communism, his argument would still be there, it has no actual dependence on the analogy he's using rhetorically. Your critique in this follow-up comment is a lot more useful than dismissing his claim as a simple logical fallacy when it isn't.

What happens when a vulnerability is discovered in one of those libraries?

Actually, he directly addressed that issue, by pointing out that updating a shared library when you find an issue with it may break some of the applications that link to it. You might (and I do) disagree with him that this means dynamic linking is bad (imo, downstream projects that choose to take on an upstream dependency have the obligation to know how that dep is intended to be used), but it's not really helpful to the discussion to pretend like he didn't consider it.