You are right. The difference between consoles and the rest of those product categories is that people do not typically have them as a core part of their identity in the way that children often do with video games, and the way that many people do with political parties. Well, maybe they do for operating systems.

However, while politics remains a defining factor in peoples views of themselves well into adulthood and parenthood, console/OS choice does not.

Those people for whom it does are probably less likely to breed so the effect will likely not be measurable.