You make a fair point. I can understand fear about a loss of cultural identity. But, speaking from a strategic standpoint, if you want to preserve the language, you need to get more people speaking it. Corrections can come later. It's like a child learning a musical instrument. Rare is the child who can tolerate being stopped every few seconds with corrections. But, teach a child to play a song in a rudimentary way on the instrument and you capture their interest. Once interest is captured, you can start teaching proper technique.

And yes, we of the US butchered English. I have no qualm with that statement. We also can't get metric right. At least we drive on the proper side of the road though. ;-)