Dear Methodists and ex-Methodists: how it should be thought about and how it should be done.
In order for something like this to happen, the United Methodist church would have to un-unite on theological grounds, as the Presbyterians did, as the Lutherans did, as the American Episcopal/Anglicans did.
To expropriate the Presbyterian terms, there would have to be a Methodist Church (USA), a Methodist Church in America, and an Orthodox Methodist Church, with the MC(USA) openly embracing homosexual heterodoxy, the MCA forming a committee with the above result, and the OMC never broaching the issue in the first place--just as, say, among Lutherans the ELCA openly embraces homosexual heterodoxy, the LCMS wrote its own response, and the WELS would not broach the issue (tbh they might have, I didn't check).
Therefore (mixing my metaphors), until the fragment sheds the parasitic infection, it is senseless to claim separation (1 Cor. 6:14-7:1) until the spore, the leaven, is expunged from the constitution of the loaf. That includes the gender-bridging taint of female ordination to the diaconary or eldership, to start with.