I don't think it really makes any difference if they have had the operation or not, at the end of the day, its still a guy.
You could shave a monkey, put them in a dress with a wig and some make-up, bit of plastic surgery etc.. - but if you were to have sex with it, you would still be having sex with a monkey, not a girl.
I wonder how many of the blokes that partake in LB action would walk around their home town's with them.
Thailand's a different country, but its still the same world.