I said "not as commonly as the other two"... The US has been engaged in myriad genocides, across the globe and domestically, as has Russia. China just does it less.
I mean hell, China got their Uighurs genocide plan from the US's post 9/11 "counter terrorism".
It's easy to keep a simple majority from voting you out, when anyone opposing you gets the wall for being "Not doctrinal"...
Its like saying a pastor of a church can be voted out by a simple majority of the deacons... But the pastor can off any deacon at any time, merely for being a heretic.