You'll only encounter these options when you're creating your own Sims. Are you naive enough to believe it won't be all fags all the time with the NPCs? That could actually be limiting. Let's say you create a male Sim and send them into town to find a girlfriend or wife. You can't do that anymore because the female Sim you want your Sim to date is a lesbian and that can't be changed under the new system. Under the old system she still would have accepted your male Sim's advances, and with enough successful romantic interactions she would be heterosexual in her autonomous romantic interactions as well.

That said this will most likely be fixable with mods. You would have to run a script to unfuck all the NPCs, either setting them back to the default or straight if you don't want any fag shit in your game. The tools to change the NPCs likely already exist, so it's probably just a matter of creating the script.