Yes, we need to make changes and improvements in the short term, I completely agree with that. But we can't let the dream of 100+ mpg slip out of our minds. So, I agree that we can't wait until that day comes when we can FINALLY get 100+ mpg. But, do you really think people would be willing to make a change twice? (first, a short term change, then the change once we reach 100+mpg?)
I'm someone who would be willing, because I believe something has to be done, and I'm sure some of you feel the same way. But is the rest of the world really like you and me?