At this point the UMC is beyond saving. My local UMC remains apolitical. Should that change I will find another Church home. I make sure my donations are specifically earmarked to local charitable church activities and not to the general fund. I cannot support UMC Global Ministries liberal agenda.
When the time comes, and it will come, I think you would have two options, depending on your preference. If you like the liturgical aspects of worship, find the closest Lutheran Church Missouri Synod congregation; if that doesn't appeal to you, find the closest Wesleyan congregation. If you go in other directions you would be dealing with theological differences; whether they would be deal-breakers, to use a phrase being bandied about here lately :-), would be up to you.