The 'bold' change is yours ... your mistake.
Look up Jefferson's 1807 Embargo against England and France. We weren't at war with them then.
And Jefferson's Secretary of State at the time was the man who wrote the Constitution. You think he would have said somehing about that, huh?
We aren't at war with Cuba either. Yet we have an arguably legal embargo.
-- As usual, like inquest, you want to nitpick over details while you ignore the Constitutional issues.
Why is it you want to believe a majority can issue prohibitions on objects using the guise of the commerce clause?