Don't human beings act "defensively", because we always have someone attacking us?
913456
human ways to act defensivly. protecting what one believes in or of property, bodily or from ignorance.
574200
Of course I think we all do that at times, but it doesn't stop the way they treat us. We ourselves can only stop that by not allowing someone to use us as a doormat.......
829276
Primarily it's because there are many people across the entire religious and non-religious spectrum that cannot accept that people are different and for whatever reason feel the need to attack those who are different then they are.\n\nAlso, those who have been attacked seem to enjoy attacking others in turn.\n\nAll we can really do though is to support and defend those who are reasonible, respectful and kind and report any and all who want to disrespect, attack and redicule them.\n\nSuch a pity, such a pity.
514352
I will be following this very closely, as this question is incredably nessisary to ask. Strange that is should be asked however, since we are all human beings. No one is less than anyone else. Why do we have these ideas that people can push others around or away because of ones subjective belief of right or wrong? Well said Asker.
828153
That's a good question. I never really thought about it before. Right now I don't have and answer but next time I see someone getting scared of other peoples' actions I will definitely take that to mind. I am really sorry I don't have a good answer but I really want to get back to you on this.
162043
Absolutely. No doubts about it. It is our greedy nature combined with unnecessary aggression that makes life difficult for us and others also. If there is no greed then people won't  be aggressive, if they are not aggressive then they won't hurt others. However, it is human nature to be greedy and that can't be avoided. The best way is to channelise it in a positive way (easier said than done).
82551
Because it's in people's nature to fight.\n\nFor instance, even me and my twin brother are always fighting, and I mean "always".
375311
Its human nature to be fearful. Just like to be sad mad or angry if we didn't have emtions we would be really boring.
797093
Angry people are defensive as someone may unveil their weakness.
197319
Fighting is never the answer unless all sensible dialog has failed, even then in most cases it is not necessarily going to prove anything to fight. Fighting is a pretty poor solution to a problem. Fight only in self defense and only when it is unavoidable.
1167183
haha, because theyre afriad of Satan. We keep to ourselves, and will destroy anyone who tries to disturb the peace we've established.
190243
Because we think that we are always right, even though we don't mean to we hurt others and they think we did it on purpose. Most of all because we are humans!
432698
If we attack them then we have no right to be mad if they attack back.
844581
You are proving my point. You may well know how to fight, but you have no philosophy. You do not know when & when not to fight. You obviously lack humility.
1132480
We are subject to attack anytime, but with a leader being blown up then you might see it soon. Blowing him up is a good thing but bragging about it is not. It is not something to be proud of. It is just another aspect of war.
94706
We have freedom of speech. We can say what we think but we also understand that others also have that right. If we reacted with violence every time we were offended, society would turn to chaos. With freedom comes the responsibility of respecting other peoples freedom.
588668
Within ourselves, sometimes.  We should not always be peaceful in todays society.  I don't mean that we should be violent,  but,  we should speak out against the issues that are hurting us.  My opinion is that when people are peaceful and happy,  they are not working to help overcome poverty, violence, neglect of children, crime, etc.  We should fight as peacefully as possible,  regroup to regain our energy and then begin fighting again.  Only with hard work will peace prevail, not turning a blind eye and going on to pursue our own happiness.