If you want to make enemies, try to change something.
The original games look great, and I want to play them eventually. Yet X-Com EU 2012 was developed with the originals as a guide, not as a bible. X-com is a great game concept and it doesn't feel like a dumbed down, tacked on experience. There could be a little more depth to certain elements, but as it works now, the gameplay is a good mix of elegance and PAIN. Not all streamlining is bad, deal with it.
It's not as if UFO Defence through Apocalypse are being deleted off the internet or something. It's not as if the XCOM community is being tainted because it's opened up to new generations of gamers. And, believe it or not, many people who find they like EU2012 will be encouraged to play the original XCOM games, and they will ENJOY them.