Disclaimer: I am speaking for the entirety of staff here. The opinions in my post are necessarily the opinions of each individual staff member.

It was kinda cringe to ban you for that, but I can see why they were pissed. The problem is that, with your argument (romanticization of crime in black culture leads to their plight) there can be one of two conclusions as to the source of said cultural values:

1) Black culture includes so-called criminal elements because of previous disadvantages, due to elements outside of their control (most likely past racism and disenfranchisement)

2) Black culture includes so-called criminal elements because of innate inferiorities causing said ideas, either due to disadvantage because of innate lack of intelligence, or some innate predisposition to crime.

Number 2 is quite clearly racist. I don't think anyone sane would argue against that, and I don't really want to entertain dumbass arguments about how it's not racist to say black people are genetically inferior to other races. The problem is, though I don't know the context or the rest of the argument, the people you were arguing with were probably of the opinion that number 1 is the case. Which unfortunately, implicitly sided you with people making the second argument, otherwise why would you be arguing this point?

Not that I do think you're racist, but that the type of arguments you make, regardless of their truthfulness, tend to imply a certain viewpoint. Whether you think that's right or whatever is up to you.