I got my first impression of the Democratic Party at the 1968 Democratic Convention in Chicago. I had no idea what it meant to be right-wing or left-wing then, but it was that experience in '68 that caused me to vote for Nixon in '72. I voted for Ford in '76 only because I had registered as a Republican to vote for Nixon in '72. I didn't really become "politically aware" until Carter was President. I was serving my second term in the Marine Corps at the time Carter became President, and the very first thing he did upon becoming President was to pardon all the Vietnam deserters. Which completely destroyed military morale. That, and the way I was treated by Democrats in California while I was serving in the military, only reinforced my utter disdain for the anti-American left.
This was also the time when the Republican Party was at its best. Opposing the Democrat's unconstitutional "War on Poverty", "Great Society," and the nationalization of education. As someone who had sworn to protect and defend the US Constitution, the more I learned about the GOP the more I began to like them. Unfortunately, it wouldn't last.
NAFTA was actually a Republican crafted trade agreement that began its life in 1986, while Reagan was President. NAFTA was completed in 1991, but Bush41 didn't think he could get a Democrat-controlled Senate to pass it. It would not be until after the 1994 mid-term election, and the Republicans taking control of Congress for the first time in 40 years before NAFTA would be sent to the Senate.
You can certainly blame Clinton for NAFTA if you want, because he did send it to a Republican-controlled Senate for their approval. However, NAFTA was drafted by, and approved by, Republicans. So the blame should be shared.