There is a lot more going on than can be seen with the eyes in this physical reality. Many of the people that suffer on Earth do so to bring about growth and positve societal changes.
Basically, little kids who come to the earth to suffer are actually wise souls who agreed before birth to have these experiences.
Remember, the main premise behind LOA is that we are all expansions of One Divine Consciousness.
This argument holds water only if you believe in reincarnation like the person who said the above believes. Belief in reincarnation is as real as belief in one life and then a judgment. Both are simply models of existence, both are in line with the infinite nature of our selves, but the main difference is that one assumes a karmic cycle, while the other assumes unfairness in this world that will be neutralized on the day of judgment. The truth is that there is NO way of knowing the real essence of such phenomena as blue babies, or autistic children or those born with debilities of sorts. Seems very unfair, I know. And perhaps it is on some level, because these beings are unable to experience life as we do. Some of them die a few hours after birth and their parents suffer the tragedy for years. Did those parents ask for it? I doubt it that a mother who gave birth to a stillborn had manifested it out of a fear of bearing a dead child for 9 months. Gimme a break!!
We have to assume that there is a bigger, greater wisdom at play here, and there will always be things we neither understand, nor do we have the capacity to. There will always be things that are impossible to achieve.
The limitation of understanding is also the core concept that comes to our rescue when we are trying to understand the whole philosophy of the law of attraction. This law is not a magic pill that will give you exactly what you want every time if you did everything right. If it did, then youre simply assuming a very dumb, yet competent power that doesnt know jack about whats best for us. The very fact that there is a higher intelligence at play when it comes to things that happen and we dont understand them, we can safely assume that LoA is simply a law that creates WHATEVER comes into existence. Its not a law that WILL create WHATEVER we want simply because we want it to.
I would like to hear people say, "I used gravity today to jump down", or "I decided to use light to see things in my room". Why dont we talk that way about other forces?
Look at this statement: "ANYTHING that DOES come into existence, does so as per the laws of attraction, but the law of attraction can not create EVERYTHING".
Possibilities exist that still leave some things out of the realm of manifestation. And there are perhaps two reasons for it - misalignment of the owner of the unfulfilled desire (inability to receive), and/or someone else exerting its will upon us.