No one is always correct or always unbiased or always honest, and everyone's bias benefits themselves, and every person in the United States lives in a way that has disproportionate costs to other people. None of those reasons explain any of the antipathy. What does?
Bigotry. They are completely open that LGBT and other minority rights offend them, and they want to punish those who support such rights. These people are far more concentrated in urban centers.
Spite politics is the ultimate form of post industrial vanity. People are so well off and have so little to worry about that their biggest ask from their leaders is to bully those who they don't like.
Though I don't agree with it, I think many conservatives feel the same way about e.g. trans rights - that it's a form of post industrial vanity.
Excellent observation. Either side can (and does) easily accuse their opponents of this.
Some don't like anti-immigrant, anti-gay, anti-climate rethoric. Others don't like trans-rights, anti-hate-speech, anti-christianity rethoric. For either side, those are not real problems which their opponents are concerned about.
That's an underappreciated aspect of current public discourse.
Group X does action A_x due to belief B_x. That B_x isn't logical or whatever doesn't matter. Members of group X generally don't know that group X is wrong, and instead think their own biases are common sense etc.
People are not perfectly rational spheres in a vacuum.
That you can substitute in a lot of different values for X, doesn't change any of this.
Nothing they commented mentions any of the processes you did. A statement in which people need to figure out the specifics in order to make an interpretation is generally thought of as a riddle.