Are we becoming too sensitive as a nation?

Yes. but people are also too intolerant. as well as too passive aggressive. if you have an issue and genuinely wish to have that issue resolved it stands to reason one should voice the issue to whom they have it with, and state the reasons WHY, and try to come to some sort of civil end or agreement, but that's too much like the right thing to do.
everyone wants to either be better than someone, blame somebody, get over on somebody, of blend in and disappear. and none of it is helping. There's a whole lot of talking at, and responding, and much less hearing, listening and comprehending than there should be. at least in my opinion. but i could be very wrong.