Unifor is a little over two years old, so no, we have not supported Korea. Apparently nobody is supporting CETA, because it still hasn't been passed in two and a half years, and certainly we are not supporting the TPP.
As for the former CAW, I can't speak for its incredible history, but I know that we did oppose NAFTA, and I think the reason is clear if we look at things today. All of the jobs in the most important sectors are being created in Mexico, and they're not being created here in Canada.