Where have rd, th and st gone?

I'm thinking I can blame the American's for this one, but I'll have a good think about it first. So, where exactly have the suffixes rd, th and st gone? Shall I put this into context? Ok:

Person A: Hey there, how ya doing? What are you doing on Saturday?
Person B: Hey I'm good thanks! Saturday - hmmm, let me think... What date is that?
Person A: Um, I think it's September 15.
Person B: You mean, September 15th...?
Person A: That's what I said - September 15.

NO - that is NOT what you said, Person A - you clearly neglected to put the 'th' on the end of your '15' - it's unforgivable god damn you!!

Seriously - it's everywhere. My colleagues do it (Roy is the worst offender), my boss does it, people in the street do it, and crucially, people on the NEWS are doing it. Oh yes - this shocking misuse of the english language has infiltrated our airwaves and infected our homes. I'm near certain that it's the American's who started it with their September 11 malarky, and we, the gullible and easily led race that we are, have taken it on board.

But, the thing is, I refuse to believe that we are that easily changed - surely there must have been someone somewhere who said, "Ok people, let's save ourselves a few milliseconds here and there and leave the rd, th and st off our dates. Ok? From....NOW." I missed this announcement, and even if I had have witnessed it, I'd have complained outrageously.

You see, it doesn't sound nice. It doesn't save time in the grand scheme of things. And, most importantly, IT MAKES YOU SOUND AMERICAN. Who in their right mind would want to affiliate themselves with a race of people so fucking lazy that they've taken the u out of colour, and the u out of glamourous (and then go and put it in a song (fergie) where they actually spell it out for all the world to see that they're fucking stupid).

I fear that all is lost. I've tried to carry on with my rd, th and st, but to no avail. People actually look at me funny, as if I'M the one who's fucked about with the suffixes. I don't know what to do about it. Maybe a petition? Maybe a letter to someone?

God damn it - I just need to know that we're not turning into Americans!! Help me... please...