Movies that are bleak and quite frankly depressing

I just finished watching "The Brutalist" and I am incredibly conflicted about it. During my viewing experience, I absolutely hated the second half of the movie, however, I do know that it's supposed to culminate into a metaphor about capitalism, abuse of immigrants, greed and the failure of the American dream.

I'm not quite convinced that "The Brutalist" conveys it's point well. (For any fans of the movie, please understand I am still trying to articulate where I felt it lacked, not that I think that it's entirely bad.) And I just want to find films that convey similar themes of bleakness and struggle differently so I can formulate a better opinion and draw comparisons.

As a quick example from a wildly different genre, I think "The Thing" is a perfect example of executing a sense of hopelessness and nihilism, but it's obviously not along the same themes of "The Brutalist".

If anyone has any good suggestions, please let me know! Thank you.