[ His eyes narrow, a slow exhale following as he began to channel his necessary emotions for his power to start working. All while his stance carefully began to shift. ]

Just because you reject them does not mean they are not your children! Sometimes children grow up to not be what you expect, but you love them as that is what a parent does.

[ In other words he heavily disapproves of you calling your sons that. The very air is tense here. ]

If you can call them that and treat them that way... then you're a bad mother.