Brother US (and maybe the UK) made the propaganda and the systems of the world, they are gonna be very effective for their goals.
Have you forgotten they are a superpower or something? They are the origin of that kind of red scare propaganda, and they always aimed most of it not at the inside but at everyone else.
It’s certainly a saying here in Europe that we do what the US does ten years later (or that we do what they tell us to do) and it’s a saying because it’s core is true.