I read this thread and it makes me very perplex...
Let me state from the get go that I totally understand the need for rubber and that I am in no way in favor of BBFS.
However.....
It seems that we judge those people who ask for BBFS in the same way general society judge us, hobbiers: Harshly, black and white thinking without any empathy of any kind and with total lack of understanding of the motivation for doing it. Result: we do it anyway! Likely result: they will ask for it anyway....
For me, the solution lies in 1. empathy, and 2. education.
For #1, Ladies, can you imagine receiving oral sex through a rubber? Imagine if that's all you could get all your life? I think it is very human, stupid maybe but still very understandable to want to experience bb sex and feel your partner for real. I think it is only normal that, after fantasizing about it for so long, lonesome guys would want to try it whatever the risks. Guys, many of us do parachute jumping, rock climbing or other extreme sports. Same thing here: there is a risk, the risk perception and threshold is different for each individual, men tend to be glamorized when they take risks. To some, the risks of bbfs is assumable.
For #2: Ladies need to be more informed of their rights to refuse it and to the risks of doing it, I wholeheartedly agree. But also, guys must be sensitized to the fact that it is not only a risk to them, but also a risk to their partner. When we have a lady in front of us who is ready and willing to have affectuous or steamy sex with us, only an immense minority of us want to harm that person (ladies, please comment here....). We are generally grateful and caring to that person. Being sensitized to her risks, in my opinion, is key.
Combining #1 and #2, could a sensible approach look like this: if/when a lady is being asked for bbfs, instead of being insulted or slamming the door, what about her kindly and caringly talked to the client, explaining to them that they understand their lack of/diminished feeling through a rubber, explaining to them the reason they are not ready to assume that risk and convincingly offer to use their mouth and hands skillfully to make up for it? Ladies, do you think they would go for it? Guys, would you?