For you, what is suffering?
Boredom, longing, anger, hatred, confusion, having what I don't want to have, not having what I want to have.
And what is the cause of suffering?
I would have to speculate on that, as currently, I don't know. It could be many things.
But thinking myself as either "basically good" or "basically bad" does not help to reduce suffering, this I know. Because both stances lead to inaction, to complacency, to passivity - which lead to more boredom, longing, anger, hatred, confusion, having what I don't want to have, not having what I want to have.
Nothing (we percieve) exists without God, that is my understanding.
That would include evil then, too.
Its a pity you don't give this much energy to scriptures or people who live accordingly.
You apparently didn't grow up with the kind of Christianity I did. We were basically taught to ease into the prospect of being burnt alive for all eternity. I would go to bed each night, thinking that if God wants to punish me with eternal hellfire, then so it must be and I must accept that, he does it because he loves me.
It's not reasonable to expect that after some thirty years of such beliefs, it will be easy to give them up. The attachment to them, albeit a negative one, is very strong.
Judging by your reaction to the two theists in your links, I don't think you fully understand what it is they are saying to you, while at the same time you are giving your own opinions based on what's in your head. You are basically wasting time with this pursuit as you are not prepared to hear what others have to say on the matter.
They are telling me to think myself as basically bad, to give up my integrity and to believe the word of man, blindly (even though they say it's not the word of man, but of God).
I know what it does if I think that way - I have the "right beliefs", but I become lazy and complacent, not respecting my beliefs, nor my life nor anyone or anything else.
But given the multitude of theisms and their sometimes mutually exclusive claims, it becomes infinitely difficult to figure out which God to believe in and what this right way would be.
This is a typical (new) atheist mind-set, designed to kill any futher discussion on God.
Designed?
It certainly speaks of the frustrations of people who delve into issues of belief in God.
As is "where is the (scientific) evidence for God", and "if God created the universe, who created God". Is this where you are at?
No. But witnessing the religious wars and disputes, one cannot help but to wonder who "has it right" when each of the two parties claim they "have it right".
It is not fair that the burden of proof for
their claims is placed on our shoulders. It is their attempt to rid themselves of any responsibility for the claims they make.