You're confusing misdirection for divide and conquer. Divide and conquer would mean the US splits up so China can be the superpower.
"Wedge Issues" would the political science nerd terminology, e.g. abortion, guns, or trans rights, which serve as a lever to push political action.
It's pretty clear that that is the modus operandi.
1. The sort of "Boomer hate Millennial" or vice versa or "Zoomers have no idea what a record player is"-type clickbait.