That’s one way to look at it. Another is through the political lens of this country. It would be folly to stand up a third party and expect to take over control of the Executive or Legislative Branches in a generation. What must be done is what Reagan did... use our energy to revitalize a conservative Republican party.
Just so with the Church. East split from West over the issue of authority near the first millenium. Protestant split from Catholic over the 95 Theses in the 15th Century. These schisms have scandalized the world and cause us to fight one another rather than reaping the harvest. What should have been done? What was done in the Catholic Church following the 95 Theses... within two popes, the Church was reformed.
We are the Body of Christ through His Marriage to His Bride, the Church. We do not strengthen the Body by lopping off parts when we disagree.
It’s pretty naive to think that ELCA is a Christian church in the first place. (Cf. the book What’s Going On Among the Lutherans? by Leppien and Smith, which several decades ago showed just how bad the rot is. There may be Christians in the pews, but they need to get out of a pagan, anti-Christian institution.)