There is no free lunch with trade.
https://www.google.com/amp/www.latimes.com/business/la-fi-ta...
If you can negotiate a tax-break for your industry then it'll give you millions, but millions or even billions divided up amongst the whole nation is hard to spot for an individual.
And those 1,200 jobs are just the visible ones. The extra billion dollars probably came with further negative effects somewhere else.
(German coal mining was (or still is?) in similar territory: the subsidy necessary to keep a few mining jobs around was way higher than what those guys got paid.)