"So far, Portugal, Norway, Denmark, Finland, Ireland, Germany, France and the U.K. have all issued new travel guidance for those wishing to travel to the U.S."
Last I checked, Germany's advice was similar (i.e., not a general warning); and from the article, it doesn't look like Portugal's advice is a Travel Warning either. There's a difference between making information available, and providing warnings.
What changed is that they made the text clearer, that ESTA approval doesn't guarantee entry and decision is made by the border officer and adding a note that wrong information may lead to incarceration.
Those notes weren't "needed" before as that was rare, while theoretically the rules were the same, but seem to be handled stricter now.
It's absolute lunacy that western governments are giving out negative travel advice against the US at all, but I've noticed Newsweek seems to have an agenda on this topic.
Finland Ministry for Foreign Affairs has this section on their "Traveling to United States" page (Google translated):
Current affairs
When traveling to the United States, it is important to note that a valid ESTA or visa does not necessarily entitle you to enter the United States. Overstaying your stay or providing incorrect information about the purpose of your stay may result in arrest or deportation.
The United States has also issued an executive order (25 STATE 11402) on February 24, 2025, according to which applicants for a US ESTA or visa must in future indicate their gender as either “male” or “female”. According to the order, applicants must indicate their gender as determined at birth in their application.
If the applicant’s current gender as recorded in their passport differs from their gender as determined at birth, the US authorities may refuse entry. It is recommended to check the entry requirements in advance with the US authorities.
There is no gender marking X in the Finnish passport. If, for example, a dual citizen has a passport with an X marking, the entry requirements can be checked in advance with the US authorities.
Political demonstrations may occur in major cities, which may turn violent. Avoid large gatherings or demonstrations.
