Cheaper stuff means we can afford more of it.
Unless you don't have a job! See how that works?
You may say that your job won't go away. Well, the people that pay for services still have to earn their money somewhere. The buck stops somewhere.
The US is large enough to be it's own economy, in effect. With the exception of some resources that have to imported in any case, we could thrive on our own. In fact, in our prime years as an industrial power, we did.
The only folks ultimately benefiting long term from cheap overseas labor are the large multi-national corporations that have no allegiance to anyone but the almight dollar.
One thing is for sure, we will reap what we have sown.
I do agree, however, that the jobs least affected for the longest time will be the service "trades". College doesn't look like much of a guarantee anymore for anyone wanting a bright future. They will be "outsourced" out of work.