Another argument for God.

[Mystic]

Morality is based on properly basic axioms, like "to value others is good" "loving others is good", those cannot be reasoned but form the properly basics of how we should go about other actions using reason. If you try to reason them, and make them, well because it suits our needs, and suits my needs, you are reducing morality to utility for yourself, which makes it entirely selfish.

I disagree that values cannot be reasoned... but let's just ignore that for now. I'm confused about how "understanding the brain/ the brain is the source" is a problem when judging moral discernments.

How does it matter to your argument that these axioms/values come from  the brain? It is either true that "to value others is good" or it is not true. Something is either a good idea or it's not a good idea. It says nothing about the idea itself to describe its source. Suppose the brain is a horrible source for moral ideas. Who cares? On the whole, I find horoscopes to be a terrible source for advice, but if a horoscope said, "If you see that it's raining outside bring along an umbrella," I wouldn't think its a BAD idea  just because my horoscope recommended it. Likewise, even if a brain is a terrible source for moral information, you cannot say that all brain-originated moral assessments are false. It doesn't follow.

If a brain is a terrible source of moral assessment, and if goodness is to act on guided love, and that requires evidence and proofs and sight to actions for it be guided love acting on objective perception, then something else has to guide us for goodness to be possible.

And if goodness is acting on chaotic or unguided love, then there is no good and evil, because most evil is acted on chaotic and unguided and unbalanced love.

And if we are allowed to do both, good and evil, and mix it all, there is no good or evil.