ICE is arresting/detaining people in chaotic and unpredictable ways right now. It is a very real risk for any non-citizen to cross a US border at this time.
For Canada specifically, I would imagine the story of the Canadian woman[1] who was incarcerated without charges for two weeks(!!!) while holding a valid visa would deter a significant number of travelers. As an American, I would not travel to any country where stories like this one were emerging.
1 - https://www.theguardian.com/us-news/2025/mar/19/canadian-det...