Edited to add - To be clear for anyone, it's Oligarchs/Billionaires paired with rampant, unfettered corporate greed. (at least in my view)
Someone reminded me that I was using dogwhistle parlance in my use of they which may have suggested otherwise.
Here are some visual aids to accompany my clarification:
Your political affiliation based on what came to your mind when you read the title
At this point the answer should be billionaires regardless of affiliation.
A) What the fuck are billionaires? The bourgeoisie.
B) What facilitates this perversion? The bourgeois system.
Billionaires aren't the problem they're the symptoms of disease. Rejection of this fact shows the early stages of your radicalization.