Changelings had been historically victimized by "solids". Diplomatic talks were a nonstarter. So the Changelings pushed for Domination. The Federation refused to submit to Changeling demands. Remember the Federation ventures into the Gamma Quad were seen as hostile transgressions into Dominion Space.
That's exactly my point. The Founders perceived
the Federation as threat, but that doesn't mean that they actually were
. Perception doesn't equal reality, despite what the Great Link would have everyone believe.
Dominion beats the Federation's ass in six months. Tops.
Based on what?