Doomsday Scenarios for the Economy

Well, I’ve seen Mexico.
Mexico had, prior to NAFTA, all kinds of tariffs in place. If there was ever a place where you could look at tariffs and see what they do, Mexico was the place.
It ain’t pretty.
Free trade is hard. But then, freedom is hard. If you fail, there is no excuse, and no one really cares to listen to your excuses either. You just failed. You have to pick yourself up and try again.
The world is like that. Unfortunately for the workers of the world, until China’s communists are eliminated, there won’t be much hope of a better life. Ironic, but true.

Blood, by the way, referred not to violence, but to strikes. Unfortunately, the answer to strikes in places with not a lot of support for trade unions, is violence by management-hired goons or the police against the strikers.
So, in the real world, some good, honest people will have to die before justice can be achieved.

Could you clarify what this sentence is supposed to mean? Chinese workers won’t have a better life, workers in other countries won’t have a better life, what?

China, as I’m sure you’re aware, is huge. As such, it has an outsized influence on the economy of the world. As long as it sports a dictatorial regime that does little more than pay lip service to worker’s rights, the employers of the world have this place as an alternative to put their production facilities if workers in, let’s say, Poland start to get too restless.
Democracy, because it at least gives the lowest of the low the power of the vote, is the only hope for the world’s workers. Without it, they have no influence at all in the affairs of the nations where they live. Why do you think India has managed to remain democratic all these years, despite having a population nearly as huge and certainly as heterogenous as China’s? You can be sure the people there know that without the vote they’d be completely forlorn.