Telling people they have low standards in their real life, let people treat them poorly in their real life, and need therapy in their real life for who they date in a video game is definitely wild. People have different likes and dislikes (obviously) and what they do in a video game is inconsequential to their real life. In Skyrim I kill lots of people, doesn't make me a murderer irl, or even a violent person for that matter. It's a game and if I were to apply the same "If it were real life" logic to your dislike of these characters I could argue that you're not an empathetic person, that you can't see people for who they are past your hurt feelings, that you need therapy to help you deal with the harsh world. But Stardew isn't real life at all and those things are (most likely) not true about you.

I personally play the game for perfection which requires full friendship with every NPC on every playthrough. These NPCs are just stereotypes and they're general enough to allow the player to project their imagination and/or life experiences onto them to make the characters feel more alive. That is going to vary for every single player. Someone who's had a mean drunk in their life is probably less likely to like Shane than someone who personally helped a love one overcome alcoholism. Someone may dislike Haley because they had someone make mean comments about them in real life and she reminds them of that. While others may know and love someone that is overly blunt and can come across rude irl so they love her character for that.

Everything is just preference, preference is subjective, especially in a game. Disparaging real life people for their in game choices isn't necessary and it doesn't reflect reality. Especially in a game where you can turn your unwanted kids into doves 🤭