The Fox thing is a symptom of the issues.
Someone in power should not rely on something as obviously biased as that Fox interview to reinforce their views and to spread them.
It's that simple. It's what probably happened with the Iraq wars. Listen to what you want to hear and then act on it.
At least the dossier in the Iraq war was presented by the intelligence community. If Trump acts because he saw a report on Fox,that is a massive issue. He could get his intelligence agencies to ask him for a report on the issue - and trust them to tell him what is happening - and how far the Fox reports represent reality.
People who say - well Sweden does have issues are missing the BIGGER picture.
Trump saw something on TV, It suited his views, He repeated it to the masses.
A President or Prime Minister shouldn't do that.