There was just a judge in the news for refusing to officiate a same-sex marriage. In many places it's at the stage of being eroded, just not officially. Bigots are starting to feel like it's safe to discriminate more blatantly than before.

Even if this judge gets slapped down, cases like this put couples in the position of having to shop around for judges, and/or find time and funds for a lawyer, when they should by all rights be able to just celebrate like any other couple, and in the meantime they're left temporarily without marriage rights for hospital visitation/medical decision making, taxes, and parentage.

Also if either person or their child is trans there's a whole nother pile of shite to deal with, particularly re. state laws like Florida's that allow essentially legal kidnapping if a child or parent is trans. If you're trans and have a child from a previous marriage, or if you have a trans child from a previous marriage, you could easily end up in a situation where state law gives precedence to your ex when it comes to parental rights, and I can easily see this being worse if the state also doesn't want to recognize your new marriage/partner because gay.

Edit: to clarify I think we're not disagreeing actually, from what you said. I just wanted to elaborate on this.