Yeah, eventually blaming everything on “the enemy” leads to a new problem, people start to question why the government allows “the enemy” to get away with all this stuff, and they stand to lose the next election due to seeming weak and impotent. But once they do, if they backtrack on the whole scapegoat thing, they look even weaker, so they’re stuck just insisting all their problems are caused by invisible foes and can’t do anything to stop them.