Free Trade and Free markets is the main reason for the loss of millions of jobs in the USA!
And protectionism is the main reason for WW1 and WW2. So take your pick.
BOTH parties supported NAFTA
House of Representatives approved NAFTA on November 17, 1993, 234-200. The agreement's supporters included 132 Republicans and 102 Democrats. NAFTA passed the Senate 61-38. Senate supporters were 34 Republicans and 27 Democrats.