That note to mom and dad can’t be real.
Nobody is that stupid. And nobody is idiot enough to prefer a political party over his family, even if the person that’s the object of the hate is Trump.
And, without explaining himself, he writes what he believes rather than actual examples of the hate and violence that this person attributes to Trump.
This person should have his kids taken from him and handed over to their grandparents. The kind of derangement exhibited by him makes him dangerous to his whole family.
If the note was real and his hate of Trump is so real that he would punish his parents (and his kids by extension), then, this person should be committed.
In a sane world, yes.