TO play devil’s advocate for a moment...let us consider:
The “Mom, I’m a fag” is total bullshit to cover for some other psychological abuse in the home. The bullying is also cover for the same.
How do this child’s peers even understand what being a faggot is?
It more likely that this “mother” is a deranged bitch who made this little boy’s life a living hell. I would put money on the idea that she planted the seeds of faggotry in his mind or even pimped him out to some faggot to turn him into one.
She should have at least warned him that his classmates might reject his new found fondness for queerism...