He doesn't always couch his arguments in the most dispassionate or compassionate manner, but that's not his rhetorical style. What he does is effective, and that's why those unable to measure up to his standards of integrity and knowledgeability are apt to attempting to silence and exile him. It is ironic that the anarchist, atheist, asshole, with a criminal record from New York City is, quite literally, the conscience of "the liberty movement".
As is the case with any other economic or human social issue, government involvement makes everything worse rather than better. The state has absolutely no reason, moral or otherwise to concern itself with the voluntary interactions of human beings, nor they types of agreements (or contracts, for those who believe in contracts) that humans make between themselves. The Church has no reason to try to make sinners the enemy of the state and use violence to try to force them to behave morally, as it will only increase opposition to the Church, and justly so. When did Christ ever take a sword to the adulterer? In the same way, the state cannot use violence to force the Church to acknowledge the state's claim to redefine an institution as old as the human race in order to garner political support.
Inserting itself into the voluntary interactions of humans: forcing cake shops to serve customers, punishing churches that will not abandon their sacramental duties, and creating any number of perverse economic incentives will not make discrimination go away, it will justify and magnify it. Just as people are incentivized to kill endangered species that come to roost on private property, they are incentivized to make protected classes of humans go away when they come to roost.