Only a true American patriot who is deeply devoted to the nation's ideals would zealously protect a system of units that has been thrown in the dustbin of history by the rest of humanity.
It's difficult to sort through the negative sentiments to get to real point. Be more clear with your hostility and anger next time, would'ya?
You're projecting.
But I haven't even thrown out 'true', 'devoted', or 'zealot' yet!