If one believes the "instruction book" for such offices as "overseers" in the church -- as opposed to believing in the supremacy of cultural trends and opinion polls -- Paul lays out the requirements for such offices in his first letter to his protege, Timothy.
Among them are that pastors, bishops and other clergy must be "the husband of one wife" and "Moreover, he must be well thought of by outsiders, so that he may not fall into disgrace, into a snare of the devil." (1 Timothy 3:1) These qualifications, coupled with other relational rules involving husband-wife and male-female relations, clearly presume a heterosexual, married relationship for bishops.
The Evangelical Lutheran Church bishops have embraced trendiness and abandoned the very Scriptures which are their basis for "evangelizing." If these bishops choose to violate God's instruction book, church members have two choices, should they wish to continue to honor the authority of scripture and its Author: they can remove the bishops from office, or they can leave the denomination. To remain in the denomination and do nothing makes members co-conspirators in the bishops' apostasy.