Who told the kids that?

[Bengalzona]

Here's the thing with "hate speech" and hate in general: It only and always reveals negative things about the 'hater' rather than the 'hated'. Whatever message or justification you may use to try to condone that hate is meaningless. It only shows your own capitulation to fear and your inadequacies.

For those with a religious inclinations, do a Google search for 7 Deadly Sins and you'll find it under "Anger".