There are many sources of information about the United Methodist Church available on the internet. For example, a google search with the keywords: israel+ divestment+ "united methodist" yields 18,500 results.
Another resource to check out is The Confessing Movement within The United Methodist Church
http://confessingumc.org/v2/
Thank you for the link to the Confessing Movement. I'm going to explore it! I would love for the UMC to be renewed. My entire mother's side of the family is UMC and I feel it's in my roots.
I looked into the Presbyterian church, too. Unfortunately, it's all PCUSA around here :(