If he's a Libertarian, he doesn't want them discriminated against BY THE GOVERNMENT. Like laws against sodomy.
That does NOT mean private individuals can't discriminate. No Libertarian would force you to rent to a homosexual couple, or employ a homosexual.
Hence, no "societal acceptance".
“Like laws against sodomy”
OK but there are no (enforced at least) laws against sodomy, and no credible attempt to create such laws. So do you have an actual example? Because I think I’m the one against government intervention here. I think the conservative is the real “libertarian” here, and the “libertarian” is something quite undefined and largely a fudge.