This isn't really a great argument. Subsidies are there to promote the things we want to come to fruition. Want your people to have solar? Subsidies for putting one on your roof. You want more electric cars on the road even though more expensive? Subsidies.
You want a billionaire to help a new technology reach people he wouldn't bother with? Subsidies.
So we do that by giving them even more fucking money, instead of taking it away when they do a shitty thing, like ruin our atmosphere with fossil fuels.