[DoubleM]

this is really difficult to express....
I've worked with affirmations for almost 30 years, not steadily, but I have found it did help with my deep insecurities and negative attitudes.

I had a very deep conversation with my 19 year old son recently and discovered just how grim his outlook on life is, in general.

He takes the weight of the world and it's fate on his shoulders. He sees the big picture and finds nothing to smile at. Humans are killing the planet. We have messed up Earth and it's too late to reverse it.
Humans are sick, heartless, stupid and cruel.
He isn't in a deep depression or suicidal, he just doesn't like humanity.
I have given him <the four agreements> to read and he did, shrugged it off, basically.

I've tried to explain that he can't do that to himself, he isn't responsible for the entirety of the race, only himself and his own energy.
That he could do some affirmations and a gratitude journal.
He says he feels like it's hypocritical. Lying to himself.
Needless to say, this made me very sad and distraught.

How can I change his perception of these wonderful tools?