One way to think of a political platform that seeks "unity" is this.
Try to give every constituency *something* they want. That plus *their desire to unify* will convince them to come into the coalition even if it's not perfect.
This definition explains why Democratic platforms always find ways to give concessions to right wingers. It also explains why it'll never work with the current incarnation of the right wing. They literally have no desire for unity. They want dominance.