If you think that the other mob have any greater interest in promoting what their constituents see as a hobby for rich old men, then multi-cultural, transgender pigs might levitate.
As to the race itself, yes I'd love to see it happen, but no I don't really think it is something that our government should be stumping up the funds for, in the current economic climate. Support and facilitate yes, pay for no. There are too many SJW interest groups that would use it as yet another piece of ammunition against them. Private philanthropy on the other hand, a la Kremer or Sikorsky prizes, I'd have thought that was more fertile ground for drumming up support, especially given the green tinge to the whole endeavour.