My dear physic geniuses,

First of all big disclaimer, I am no physicist. So everything I say from now on is the full best of my knowledge but isn't it possible that the dark matter in the universe consists of something we have for very long dismissed as something that has been wiped out in the very first seconds of the birth of the universe due to a slightly larger portion of matter like the one everything consists of that we know?

I mean seriously. How likely is it that during the birth of the universe, which as far as we believe seems to follow very beautiful and comparably simple mathematical framework there was like a bazillion times more antimatter than matter in the beginning? Isn't it much more likely that there were certain places in the birth of the universe that had like just a tiny bit more matter than antimatter? and this is were the very thing we now know emerged. We see all the matter-spot in the universe by looking at far away galaxies. But because space itself spread too quickly in these very first seconds there wasn't a complete elimination of antimatter everywhere. Just here and there.

But this means there must also be places where this was the other way around. Antimatter-Galaxies. And we can not see them because they are inverted. However, they are still there and we can see them indirectly by their gravitational power.

And now seriously guys: Does that sound too stoned or could there be more to it?