New jobs are created when you create more demand by dropping prices, or build new markets for products that didn't have the opportunity to exist before because of cost. Capitalism isn't a zero sum game.

For example, reduced launch costs lower the barrier for smaller customers, who in turn need cheaper satellites that do smaller tasks, thus the recent growth of the nanosat sector of the space industry and companies like Planet [1].

Or, the recently planned satellite constellations by OneWeb and SpaceX. Both of these constellations are planned to involve 1000's of individual satellites, the launch of which would of been prohibitive with higher launch prices. I would definitely say more jobs would be created in the US by cheap, global internet than the 1000 or so that might be lost by the transformation of the US launch industry.