Because there aren't any.
The reason the Bible seems to speak “in one voice” concerning matters that pertain to LGBTQ persons is that the loud voices most often cite only one set of texts, to the determined disregard of the texts that offer a counter-position. ... The Bible contains all sorts of voices that are inimical to the good news of God’s love, mercy and justice. ... And where the Bible contradicts that news, as in the texts of rigor, these texts are to be seen as “beyond the pale” of gospel attentiveness.
More.
For Brueggemann all the following simply have to go, along with Romans 1:23ff. itself, because they are the enemy of the easy, welcoming gospel (which would strike St. Paul as quite the odious lie), even though there isn't any evidence that early Christianity reversed its antipathy for any of these perversions.
Make no mistake. There is no reason why the prohibitions against bestiality, incest, and transgenderism should stay when those against homosexuality must go.
Brueggemann should be made to answer that:
Whosoever lieth with a beast shall surely be put to death.
-- Exodus 22:19
Thou shalt not lie with mankind, as with womankind: it is abomination.
-- Leviticus 18:22
And the man that lieth with his father's wife hath uncovered his
father's nakedness: both of them shall surely be put to death; their
blood shall be upon them.
-- Leviticus 20:11
If a man also lie with mankind, as he lieth with a woman, both of them
have committed an abomination: they shall surely be put to death; their
blood shall be upon them.
-- Leviticus 20:13
And if a man lie with a beast, he shall surely be put to death: and ye shall slay the beast.
-- Leviticus 20:15
And if a woman approach unto any beast, and lie down thereto, thou shalt
kill the woman, and the beast: they shall surely be put to death; their
blood shall be upon them.
-- Leviticus 20:16
The woman shall not wear that which pertaineth unto a man, neither shall a man put on a woman's garment: for all that do so are abomination unto the LORD thy God.
-- Deuteronomy 22:5
Cursed be he that lieth with his father's wife; because he uncovereth his father's skirt. And all the people shall say, Amen.
-- Deuteronomy 27:20
Cursed be he that lieth with any manner of beast. And all the people shall say, Amen.
-- Deuteronomy 27:21
Cursed be he that lieth with his sister, the daughter of his father, or the daughter of his mother. And all the people shall say, Amen.
-- Deuteronomy 27:22
Cursed be he that lieth with his mother in law. And all the people shall say, Amen.
-- Deuteronomy 27:23
Brueggemann ignores a bunch of texts himself which contradict his cherished catch-all counter-idea that "The Gospel, unlike the Bible, is unambiguous about God’s deep love for all peoples."
For Brueggemann it couldn't possibly be that Jesus was an eschatological prophet to Israel only (Matthew 10, 15), bringing good news to its lost sheep who were impoverished by the rich who have their reward (Luke 7), who preached impending divine judgment of his generation (Luke 11) and never imagined a future church but rather the imminent arrival of the Kingdom of God out of heaven wherein The Twelve would sit on twelve thrones judging the new Israel (Matthew 19, Luke 22).
There's plenty of contradictory evidence against Brueggemann's easy gospel of "welcome", he just ignores it.
Enter by the narrow gate; for the
gate is wide and the way is easy, that leads to destruction, and those
who enter by it are many. For the gate is narrow and the way is hard,
that leads to life, and those who find it are few.
-- Matthew 7:13f.
Brueggemann ignores all the evidence because he has a different agenda, about a kingdom that is "never fully here" but is only becoming.
Perhaps the most succinct example of that ignorance is summed up in his twisted claim that "The burden of discipleship to Jesus is easy". The burden of Jesus is in fact quite specifically light because the disciple has no possessions weighing him down, impeding his escape through the narrow gate, and no social obligations of work and family either, all of which were renounced because they hold one back.
No man can be my disciple who does not say goodbye to everything that is his.
-- Luke 14:33
No one knows this Jesus anymore, not Paul himself, not today's church, and especially not Walter Brueggemann.