> I'm not sure how useful of an intelligence asset a map of my house is, or pictures of me in my boxers on a saturday morning.

Seriously, who cares about you or your house? Why do you think your personal example is the one to reason from?

iRobot sold 50 million robots, lets conservatively say 10% of those are internet connected and still in service. That's 5 million households. There's probably quite a few people in that 5 million who have something going on that Chinese intelligence is interested in, even things that may affect you personally, if indrectly (if that's what you care about).