You need to go all the way to the end of the thought on this one. "Mature democracies don't have coups because ...".
Democracies don't change human nature, there are still powerful people who want to execute coups in any given society.
Democracies don't change human nature, there are still powerful people who want to execute coups in any given society.
There are still far more people in society who don't want a coup, and the desire for a coup isn't binary - democracy changes human behavior, obviously.