It would be more important for people to perhaps be sensitive to Americans' feelings about 9/11 and radical Islamic extremists and maybe understand that building a symbol of a religion whose twisted adherents murdered 3,000 Americans right on the site of said murder MAYBE isn't the brightest idea.
It's interesting how quick many are to insinuate Americans are bigoted and racist when they object to a mosque being built upon sacred ground. Clearly the owners of the proposed mosque aren't terrorists(I'm assuming), but then again when 3,000 of your fellow citizens were slaughtered by twisted adherents of a particular religion, certain New Yorkers might not be in the mood to appreciate your exquisite nuance.
Just understand most New Yorkers are pretty bitter about what happened and try not to inflame them. It doesn't mean you can't build mosques anywhere, but damn, do these people have any respect for New Yorkers feelings? I would think that whomever is behind the plans to build the mosque would be culturally sensitive enough to know that Ground Zero might not be the best spot.
The fact that people might draw this connection and the mosque planners went ahead anyways KNOWING the controversy it would cause is the suspect part. There's thousands of places to build a mosque, and the fact that they intentionally chose that spot just doesn't sit right with a lot of people.
As for the list somebody posted of supposed Muslim grief over 9/11, I'm not sure where you dug that up from since it was never displayed in any mainstream medium: television, radio, newspaper, whatever. It's awesome that you could actually find that list, but it doesn't mean anything if those people didn't have the balls to go on a national stage and make a stand.