I did not specify a god for a reason. That reason was that which you explained. So thank you.
Also, I am not attempting to persuade you or anyone. Its just a discussion. But I do believe otherwise so here we go.
So first of all you gave me no evidence. Just an emotional response. I will work with it regardless.
So your reasoning that God did not create everything is because if God would have created everything, then he would have created only good things and no bad things. No diseases, pain, misery, or death? Is that a close enough deduction?
Who said the pain and misery was needless? Do you decree all pain and misery as needless? Without pain there is no child birth. Without misery how are we to know what happiness is? These things are not needless, they are necessary! Whether you believe in God or not surely you would agree?
The biblical flood did not kill almost all of humanity. Nor was the biblical flood intended to. You should study the subject before you attack it. I won't elaborate because your not knowledgeable enough to even understand the basics of the flood.
God created us. He can kill us at anytime, in anyway He sees fit. Is that too apologetic?