> Are dynamism and free will not necessary for the ultimate good in your eyes?
Dynamism and free will are necessary for the ultimate good, but they are also part of the picture for where evil comes from.
> If they are, and evil is an inevitable consequence, then how can evil be considered evil?
Evil is evil because it is the depraved choice of free agents. It exists because free and moral agents choose to oppose what is good and right.
> There's plenty of excess that is unproportional and unbalanced.
I'm not sure I agree. For every horrific act we can find many of morality and nobility. For every evil person on the planet we can find many of amazing goodness.
> Ultimately though, I'm talking about humans in relation to God, particular those that are virtuous and haven't heard of Christianity.
It was not clear to me that this was your focus.
Christianity speaks of "common grace" that God has built into the system: He has made all humanity in His image and imbued us with dignity and value. He also showers gifts on all humanity regardless of their religious persuasion: reason, health, beauty, food, sun & rain, etc.
> Likewise, how can you deduce that God is responsible for the good, if some atheists and agnostics are virtuous as well?
As I mentioned just above, God has gifted all of humanity with common graces. Secondly, many atheists borrow capital, so to speak, from Christianity, though without a foundation to do such. They assume things like morality, reason, and love, though from a strictly naturalist viewpoint these qualities are difficult to explain. Third, many of us are socialized to be good people, and so we live that way.
> Damning people to eternal torture. You can say all you like that God treats everyone fairly, but that is an unsupported assertion.
It's not unsupported. Ps. 9.4; 2 Cor. 5.10; 2 Tim. 4.8; Ps. 7.11; Rev. 20.13, to name a few.
> People are treated unfairly all the time.
Of course they are. The Bible is quite clear that the world doesn't work according to the Retribution Principle (good people have good lives; bad people have bad lives).
> There's also millions of situations where this doesn't happen.
Of course there are. In my long post about "the problem of evil," there is no requirement that God intervene in every evil situation to omniscient, omnipotent, and omnibenevolent. But there are also many ways that God can be involved in and intervene in situations that are not obvious. What you would have to prove to make your case, I assume, is that all evil is unjustified or that there is more evil in the universe than good, and that's not a possible case to make.