It's not even that longer queuing times will be that much of a bother. It's that the TSA is a poster-child for the embarrassing state of affairs that US airports have generally become.

Now, put me on a line of the same length at a Japanese airport, and I'm much more relaxed. Polite, non-chatty, they make sure that no one else takes your stuff (sometimes by putting another tray/something else over yours). Admittedly, it's not even guaranteed that the TSA will be the nuisance, as there are plenty of passengers out there doing who knows what while waiting on the security line (this includes elite customers who need to take out their two computers/iPads/multitude of electronics but at least they are wearing loafers).