If Fallout 3 turned into the gay bearsexathon, it wouldn't do me much good for it to be turn based.
I'd hardly call one romance scene you have to deliberately choose and go through who knows how many hours of content to get through turning the whole game into a "bearsexathon".
That's like saying the porn star quest in FO2 ruined the game for you. That you had no choice but to become a gay 'fluffer' in New Reno, and now your immersion is ruined along with the now crusty remains of your vault jumpsuit.
Good mechanics are nice, but they can't completely make up for a total lack of suspension of disbelief. If I stop taking a game seriously, that's it, I've checked out. It's a highly personal judgment, I recognize.
I guess I'm just not seeing the "suspension of disbelief" part of sex between two characters. I agree that it's perverted and weird, and only included in the game because it's perverted and weird. But welcome to 5E, where this shit exists all over the world apparently.
And I really don't see how your suspension of disbelief is going to have any problems unless you deliberately choose to make a gay character, pursue gay sex with a druid and then tell said druid to make it gay bear sex.
If no one told you that this was in the game, you wouldn't know about it without playing the romance yourself.
It's not like the werewolf romance in BG1, where it was practically forced on you that some werewolf woman would fall in love with your character and you'd get the uncomfortable dialog of trying to turn down an 8-foot dog woman as you try to flee the island. Or did you forget about that quest?