How involved should governments be in regulating foreign trade? are free markets better than regulated markets, or vice versa?

That is a really subjective questions but i think the government need to be really involved in foreign trade.

When we're talking about foreign trade, we're talking about products from competitors country such as China, which tend to be cheaper but in lower quality. When this products managed to win the market in US, a lot of US based employees will be really likely to lose their jobs.

So i think some regulations in foreign trade will be necessary