These warnings are what ministries of foreign affairs (= government officials) give out to their citizens. Newsweek is neither based in Norway nor written in Norwegian (it’s US-based), so saying it looks like something based on this single source isn’t adding much weight to your argument.
I didn’t reply to you because of how evil the USA is or isn’t but because I wanted to stress to you how big the change is that is happening. I assume you’re American and dislike anti-American opinions, I’m fine with that. I also don’t like it when people don’t like my country or my people. This is not personal, I’m not anti you. But I do think you are wrong that these travel updates are just a social media hype. The friendship between US and other western countries is under severe pressure, that is not just an opinion.