I didn't read much of your editorial.  It simply has no basis in fact.  Only in the past few years has NASA been looking to metrics and they are seeing problems with going to the use of metrics.

If I recall correctly, in the past decade there was some mission that went bad because some country provided a device that was designed using the metric system and it would not match up the the imperial measurements used in the system it was supposed to have been manufactured to match up with.   So yes, we will have to dumb down so the non-thinking people do not have to adapt to a system that has worked to bring our nation to lead the world. 

And you were the first I noticed in this thread to bring up fractions as if they were some how endemic to the imperial system.  WOW!