Oh I know how real this part is I live it everyday.
The main thing is it takes a very strong person to live this life and it isn't easy.Oh how well I know that.
If your friend is a weak person who is easily offended then she should learn how to deal with it and stop playing the victim.
Her child is trans and needs a strong parental figure to protect her/him during the time and not a weakling that folds under pressure.
Sorry to be blunt about it she is teaching her child to be a victim.