Would you buy Amtrak or USPS if they were publicly traded? I mean, once the Gov is the only reason a company survives, it becomes a Gov company. Gov companies don't typically perform well relative to peers. Boeing is another good example of this, but almost all the defense contractors with the possible exception of SpaceX (yes, SpaceX is a major Gov Contractor and the largest unicorn in unicorn land) should have done much better than they have given their proximity the the Gov trough and price insensitive contracting officers that send purchase orders and contracts with very few strings attached and/or oversight year after year after year.  And yet, they all tend to underperform once they get in the pole position for Gov funding.  Have you ever seen a vehicle that was produced in Russia? They have them. Google it. The song remains the same.