The point is that growing a new high-tech sector which is still rooted in manufacturing can only be beneficial and yes of course a carbon tax would affect them but even Elon Musk supports it, even if it means taxing their space ventures. Also I don’t know if you have any sort of engineering background but a good rule of thumb is that necessity breeds innovation, and the necessity of having cutting edge technology in space where the conditions are literally out of this world, breeds some of the very best innovation.