I'm sure you guys are fighting to get it in your countries then...
Strange reply, not sure where this hostility is coming from. As I'm not an American citizen and as I've never been to the U.S., I have no horses in this race of yours, so I really couldn't care less if this will be changed or not. Even though I find it an interesting discussion from a theoretical/constitutional perspective, I am definitely not "fighting" for one side or the other.
However, ius soli hasn't been in our constitution for centuries - in fact, it is not even part of our constitution (or any law) right now, and no, I'm not "fighting" for that to be included. It would be pretty strange to do so, since we sadly don't have the right to control our own borders anymore. What's more, ius sanguinis makes much more sense in countries that are ethnically (relatively) homogenous, like European nations.