Debunking a Dualistic religion. Evil/Good God?(Zoroastrianism)?

Please use logic to disprove modern day Zoroastrianism.
God is not all powerful.(Ahura Mazda)
Good things in life such as wealth, love, joy, prosperity, light are properties of Ahura Mazda
Bad things in life such as destruction, natural disasters, hate, dark are properties of Angra Mainyu(bad god)

Can you guys boil this down to remind me why there can only be one god who is benevolent,omnipresent/omnipotent/omniscient OR NO god at all??

Thanks

First off, you must decide what is good. Is stem cell research good? Which of these Gods would govern that? And what about Euthanasia? Which god governs that? And who decided that destruction was a bad thing. If a building is a hazard to the community, should it not be destroyed?
And why is wealth good? Sure, everyone needs money to survive. But as Notorious BIG said, "Mo Money, Mo Problems."

The problem with this religion is that it is too subjective. There are inconsistencies with the premise.

I prefer to think in a non-dualist view that God is not separate from us and is part of our being. When I think of God this way, it's easier for me to answer the toughest questions. Like why is there suffering? If God is inside us and a part of us then suffering occurs through our own collective hand and not necessarily God's. If we act wrongly or do evil, we are not acting according to that force inside us we may call God that would guide us in the right direction.
To do evil is to go against "God" and perhaps nothing more than that.

[I have been trying to post this for close to 10 minutes, Yahoo is such crap.]

Okay who rules a tennis match, the better player or the NET????

The RULES in Dualism ARE THE ABSOLUTE GOD, and the gods of dualism are mere mortals in effect. The values of goodness and prosperity are not the values of the God-head, but balance, slamming down goodness and slamming down bad are the values in dualism. It EQUATES light and dark, hence making goodness, faith and justice mere roles and not intrinsic values.

If God is omnipotent and there is evil then God is malicious
If God is not omnipotent then God is not a god.
Hence evil and God cannot both exist.

[David and Raine are vaguely supporting dualism because they don't understand the problem with it. If my "negative actions" aren't from God, then god isn't a god all over again. Idio is just restating the problem but fails to address WHY Rome could not stand with two aggressive equal forces in charge. It is because the SYSTEM is then the God and the "powerful ones" are just pawns.]

That's like the ancient Rome's political system. At one point, there are two ruling powers which disallow the existence of any infinite power, similar to the Zoroastrianism's Gods. If there are two of them, which one is the real God or, which is the most powerful? God is supposed to be the highest power. If there are two, there cannot be the highest one.

I see where you want to go, but I can't see any immediate inconsistencies in this view. (which does not mean that it is right). A potent premise for inconsistencies is the premise that God is all powerful, but that is lacking here. One problem is that I simply don't understand what is meant with the notion that "wealth, love, joy, prosperity, light are properties of Ahura Mazda" and so on. If Paul is joyful, then that is a property of Paul, or so it seems. If it is to be a property of god, what is the property in question?

Are we believing that we can know and understand the power behind the creation of trillions of stars (and according to the viewers a million more are being created every day), billions of forms of life, oceans, moons, volcanoes, earthquakes, roses, rainbows and whatever ? "God" is just a name, and that name varies much from culture to culture, and in addition to Zoroastrianism there are probably some 500 different religions spread around the world, all with different theologies. Give us a break -- what do we really understand about Zoroastrianism (a religion held by a people with different traditions, customs, rituals, language, history, sacraments since before the time of Christ) ?