Why did the embargo act of 1807 divide the american people?

It was sought to punish the United Kingdom because it violated american rights on the high seas. Thomas Jefferson wanted to use economic warfare instead of using military warfare to secure American rights.

It was hurting America rather than its intended targets, Britain and France. In March 1809, Congress repealed the Embargo Act of 1807. Jefferson signed the repeal shortly before he left office. The Embargo Act was replaced by the Non-Intercourse Act, which prohibited trade wiht only Britain and France.