He sounds like a very intelligent little guy.
He is aware of his faults as a human, there most definately is stupidity involved in being human by the way, and to be aware of this can be painful.
With all do respect, his sister may not love him, you should probably find that out.
And with even more do respect, who really wants to have been born? You are actually enjoying yourself or what? What, you think that life is great and fun or safe even? What's the hangup here? It's not odd at all in any fashion to wish that you have never been born, you need to know that.

He honestly just sounds very smart, wise even, even if just a little wise.

It sounds a lot like he's just acting out. His anger and violence towards others most likely stem from emotions he's feeling that he's already tried to explain to you - isolation, insecurity, anxiety, etc. All you can really do it try to talk to him, his sister, maybe sit the family down and in a calm and understanding setting try to talk these issues out.

As for ADD - that seems a little compulsive on the part of his teacher, and I would recommend family therapy long before I would recommend medication, especially at such a young age.

I have no idea why any teacher would immediately think of ADD at this age, especially if you told them about these other problems. I'm a teacher and it's clear that your son is experiencing low self-esteem/depression. It's not uncommon for children that young to feel this way, but you need to address it quickly, as you would with an adult. I would recommend a counselor- they can help you get to the root of the problem and hopefully come up with a solution.

There could be lots of causes to consider. Recent events like a death in the family or divorce, unidentified problems at school that could stem from a learning disability or bullying, etc.

I would look up any information you can about childhood depression and emotional problems to see if he has any other symptoms. Ask him more about his feelings and why he feels this way. Definitely get him evaluated. And definitely don't listen to woops. Even though your son is very self-aware and probably a smart kid, his behavior and actions aren't normal/acceptable. He can be smart AND happy at the same time. Just reiterate to him that he his loved no matter what.

My 6 year old daughter has been doing similar things as your little boy and I'm worried too. We are a christian family who tend to be very optimistic. To hear such hurtful words come out of my daughters mouth, just breaks my heart. "I try to be good mom but I can't. Noone loves me. I wish I were never born. I can never be good. I hate myself. You hate me, I know it". My fear is that this is the beginning of something really bad. I try to tell her that the words coming out of her mouth are very negative words and that they need to be replaced with more positive/good words. I tell her that mean words do not make anyone feel better. If you want to feel better we have to use good words - "I know I can, I know I will." I try not to give too much attention to it at the time because I don't want that to be encouraging that behavior. Someone had told me to get her checked for ADD as well. They had said that if there is a chemical imbalance, then it's beyond their ability to do the right things a lot of the times. I don't know..... These episodes always occur after being punished or getting in trouble. A part of me wants to believe that if this behavior was occuring when they aren't triggered by an event, then maybe we have a bigger issue. But because they are occuring with an event, that this is just how they are dealing with it and it's our job to help them to deal with it better. Again, I don't know.

Well home schooling is the best idea you can get him a notebook computer. School is terribly stressful.

I was five and acted that way from a traumatising event.

Having caregivers and extended family involvement is a good idea.

He may not have a good vocabulary YET.

So those are his obsession words.

You can ask him the things that he likes.

It's extremely simple.

Have him find things that he loves.

soft things warm things or cool things depending on your geography.

treat him like a mature child.

if he is suffering you can teach him about "the light that came from the heavens to enlighten every man" it might peak his interest. I'd stay away from the bible normally because there is so much pain and suffering in it. But I finally started looking for comfort everywhere instead of feeling bad like your son. So a Pastor who works at the gym with me told me to read John from the new testiment... so I tried it out which was okay but I didn't know what the heck to look for until some other Pastor I met told me to ask who is jesus and what does he want me to do. So I told you the first part. The second is he wants me "to not sin so that nothing worse happens to me" Now I just think of my blessings. A lot of people don't know right from wrong but he's still young and its never too late to teach him. I'm sure you've tried.

Okay but seriously. He is a harm to himself and needs some help. I also recomend the positive dictionary by Dr Phil somebodyorother... You can teach him new words every day he might say, "how is that positive?" and you can explain it to him. But I'd say he definately needs the right kind of attention. I hope this helps!!

my little boy ad said all the excact same things to me for yrs he now 9 yrs old hes resently been diagnosed wiv aspergers syndrome plz im not saying that ur little 1 as it just ask 2 av it checked and i thought it was end of the world when i was told the diognoses but now ive lernt to xdeal wiv it at times its emotionally hard coz of wot sum fings he says to me but i keep telling my self he dnt mean it hes still my little baby wiv or wivout the syndrome hope u work it out soon bless him