Rather than punishing (via tariffs) other countries that export to the US, it makes more sense to heavily tax the US companies who offshore their labor in the first place. This probably won’t happen, due to lobbyists. But if it wasn’t cheaper to make their products overseas, they’d bring labor back onshore.
And the thought that Americans think we’re “too good” to manufacture plastic toys is bullshit. There are industrial plastic fabricators that do just fine here. The only difference is what shape the molds are, for christ’s sake.
Employees (and potential workers) in other industries than manufacturing would benefit greatly from forced onshoring, as well. Call centers, for example, are outsourced regularly to India and the Philippines. It’s not a great job, but it’s a job. And Americans prefer talking to other Americans because mutual understanding is much higher.