I'd be curious to see some posts illustrating the benefits of NAFTA withdrawal. I have no opinion on whether NAFTA is a disaster or not; my life has improved significantly since its inception, but that's hardly a valid defense of it.
What would happen, specifically here in the U.S., if NAFTA were no more?
My life went totally to hell after Nafta, company shut down, threw 450 people out of work, jobs that paid a minimum of $10.50 per hour back in 1997, with the top pay spot at $17.50. Most of the people ended up working in "service" jobs making about 7 bucks an hour. Meanwhile people in some other country are doing the jobs "americans won't do", at least not for the slave wages that they pay in other countries.
You know what service jobs are, they are the millions of jobs that have been "created" since Nafta, the ones that pay about half of what manufacturing jobs paid.
On top of that, everyone of the 450 people who had been working and contributing to the economy and tax base was eligible for government retraining under the Nafta laws, this meant that most of them learned how to flip burgers and ask "do you want fries with that?" . What a waste of taxpayers money.