No verse of scripture in the LDS canon condemns monogamous, consensual relations between consenting equal adults.

Sodom condemns abuse.

Leviticus condemns an unequal relationship between unequal men. Makes zero mention of equal men in an equal relationship and makes no zero mention of women.

Romans describes murderers who have lost the faith and who are engaged in unhealthy relationships-- certainly not describing gay people in committed love and marriage.

1 Corinthians condemns (the greek word) πόρνοι (pornoi)
Noun - Nominative Masculine Plural
Strong's 4205: A fornicator, man who prostitutes himself. From pernemi; a prostitute, i.e. a debauchee.

1 Corinthians is condemning prostitution.

1 Timothy is condemning child abuse.