Factually, you're right. But I think you are neglecting the fantasy part of the term "forced bi", which is at the very core of the practice, as are many others. When I was locked up for several days in Warsaw Prison, I wasn't really in prison. Should this place be renamed?

Forced bi implies a scenario, an atmosphere, more than a reality; like a kidnapping (which is not real either), like Adult Baby (which is actually impossible by nature).

I'm not sure we should look that closely at the words we used when it comes to practices.