The Episcopal Church in North America also went through this. The idea was that there would be the more traditional Anglican churches that were against recognizing homosexuality, versus the Episcopal churches who do (and at the time in the US, some were performing union ceremonies before legal marriage was allowed). We were told it would be a huge problem that would kill the religion. It seems to me that whenever I look at Episcopal churches, I can figure out quickly if they are more liberal or conservative (“Anglican tradition” and no women in clergy is a good tell). Christianity has survived, and the church has survived.
I’m glad to see the United Methodist Church is catching up with many Christian churches in the states. Discrimination is one reason many people turn away from the church. Discrimination against women and LGBTQ+ is the primary reason I converted from Catholicism to the Episcopal faith