I don't think there is any "western" country where the people have any control over foreign policy. Japan elected a leader in 2012 that was going to prevent a US military base. Resigned a week before he was going to do it. Similar story in Australia. France elected a leader ~40 years ago I think who was going to dismantle french control in africa. Got elected and realized he had no power to do so, or at least said as much. The recent wars in the middle east were less popular in Europe, afaik, and yet they all stayed involved for exactly as long as the USA.
I think foreign policy, domestic policy, and economic system together are the state. Everything else is just window-dressing. Thats why we have no democratic control over it. The authority of the state is non-negotiable.