You ... might be the out-of-touch one here. This culture is pretty common all over the country these days (although definitely most prevalent in the big metro areas).
How could they be meaningless? They have clear meanings. Maybe you mean that you are choosing to disbelieve them? Then that's your problem. They're self-evidently true if you live in these places.
What? Subjective claims still support an argument, just more loosely than objective ones do. Instead of saying my observations are wrong or that you disagree with them, your stance is that "opinions aren't real"? That's absurd.
The kind of worldview being promoted here tends to have people that prefer to enforce their worldview by the sword rather than in the chamber of ideals and free thought.
Disgust is an interesting response to this experience.
I encourage you to reframe your thoughts in "is they consenting adults?" and then "is this hurting anyone?" if the answers are "yes they're adults and they're not hurting anyone", I encourage you to mind your own business :)
Gay people aren't "shoving things in your face" when they kiss, or can be seen holding hands, or have representation in a book or movies because the author wanted to represent themselves in the media any more than straight people are "shoving things in your face" when they kiss, or can be seen holding hands, etc. Equally, non-monogamous people aren't shoving anything in your face by existing in a way that makes them happy and affirmed. Disgust over other people's choices and lives and the subsequent attempt to squelch that is very anti-liberty.
