He's a fucking faggot.
Also, it's a psychological self defense mechanism developed by a crazy little boy whose mommy smothered him and taught him he was smart and special.
Lucas is delusional and has a learned sense of entitlement to boot. Food, money, praise and teen poonaner are all things he expects to receive just because others have them. He he has learned from mommy (and now the state) that he is given things; he does not earn them.
A recurrent theme in his life is that he's not responsible for his problems. Due in part to his illness and upbringing he doesn't fully recognize or acknowledge the nature or extent of his problems. That'd be damaging to his mommy inflated ego. He copes in part by greatly minimizing his problems ("I'm bipolar, not schizophrenic, but I can't be bipolar because I have empathy, but give me my tugboat" "It's totally cool to not have worked since 1999"). He's also highly stubborn, because he cannot own his mistakes, allowing him to fuck up over and over again without concluding he's fucked up. He learns, but always the wrong lesson.
Yet, Lucas notices his problems, to the extent his desires are thwarted and his expectations frustrated. He misidentifies them. The gap between his experience and unfulfilled desires is so extreme that he copes by locating the source of his despair externally. Therefore, it's a matter of agephobes, classist, bigots, religionists, Republicans, shrinks, pharmaceutical companies, flatbills who hoard women, greed, bitches, etc; his untreated schizophrenia, narcissism, ridiculous attitude and general degeneracy strike him as irrelevant to his situation.
Another strategy is to pathologize things he lacks. No car? Cars are killing the planet. No money? Money is evil. This gives him a comfortable way to soothe himself for not having things. He frames his shortcomings as righteous, further inflating his ego.
Just imagine: you are 40, and have nothing on Earth to show for your time. No accomplishments, no friends, no money, no relationships, no experience with teen poonaner. None of the things that society values, or that you want. Nothing. You've done nothing with your life. Things didn't work out, and you've squandered so much time.
You have nowhere to go Your days are spent wandering in public, shouting at your phone and seeing things you want but don't have. You're starved for contact, so you take to social media. You want recognition, so you constantly try to impress people with your goodness and brilliance. You know you're brilliant and good. Mommy told you so.
Your reflection reveals that you've grown fat from free food. You're balding, and ugly. You wear dentures.
You're homeless, and broke, and always mere steps away from returning to jail or the psych ward. People, including judges and doctors, insist that you take pills and go to therapy.
You fit in nowhere. You keep getting banned from places. Mean people have always made fun of and avoided you, and now you're so notorious journalists write mocking stories about you and strangers study your faults and sperg about how much you suck.
It's easier to blame the world than to accept this is the life you made. The world sucks, not you. You may be highly resistant to treatment, and immune to self improvement, but you still have hope and still value yourself. So you go on living.