What's Wrong with the American Language?

I've noticed a severe decline in American language usage as in it's becoming incorrect more and more. It's all over T.V., radio, books, magazines, and basically all media. Who hires these dummies? Dummies themselves is the only answer I can find. I'm not even old enough to be thoroughly disgusted by people of my generation, but it seems everyone that wants to say something or write something is doing it. Here's a clue. Just because everyone is doing it doesn't mean it is correct by any means.

Here are some examples.

December 5, 2009 is just that. It is not correct to say or write December 5th. It is correct to say or write December 5. PERIOD. The only time st, nd, rd, or th is added at the end of a date is if it is said or written BEFORE the month as in the 5th of December. Look it up! It's incredibly ignorant, stupid, and uneducated to say or write December 5th, 2009. LOOK IT UP! Even a simple word processing program knows better. Try it. Start typing and it will insert the correct type.

Another one is "till".
This is completely uneducated to spell this word in the wrong context. I've seen local T.V. stations write "this offer is valid till the expiration date". It is 'til or until. DUH! You would only spell "till" if you are going to till a field.

What's wrong with people? Are they getting that dumbed down to where they do what everyone else does? I have one word for them. Dummy! Grow a brain stem!