Possibly the blog here could help:
While it addresses the ELCA, your concerns re Missouri Synod are solid. Many formerly ELCA congregations have left and joined other Synods.
Know something of your dilemma.
Also consider this letter while searching:
http://lutherquest.org/walther/articles/jmc00042.htm
“Death of the ELCA:
Is Missouri Next?
by Rev. Jack Cascione
” . . .The correct preaching of the Gospel in the LCMS is seriously challenged in the Missouri Synod by the doctrinal collapse of the Evangelical Lutheran Church in America (ELCA). “ . . .
Kind of like liberals “escaping” to conservative places for lower taxes, eh? Then ruining everything as they keep voting the same.