Those companies were not financed by taxpayers. Taxpayers bought some of their stuff, like flights to the space station from space x. Notice that not only did B

Those companies were not financed by taxpayers. Taxpayers bought some of their stuff, like flights to the space station from space x. Notice that not only did Boeing charge significantly more for human flights to space than spaceX, almost 50% more than SpaceX but they failed to deliver. On evs, any company could get those subsidies that were designed to kick off the market. They worked brilliantly to kick off the market, it is just that most legacy car companies failed to produce evs, thus they had to pay other companies (Tesla is far from the only company to get money on top of sales for producing evs).