"acting black means using broken english and if you speak properly it means you are trying to act white"
Calling black-English 'broken' is pretty false. They've done research on this, and African-American Vernacular English (AAVE) is both linguistically consistent and sensical.
If you're going off regular American English grammar rules, parts of AAVE are technically 'wrong', but so are lots of grammatical conventions and phrases that we use today. If you went back in time to 1790 and talked to random people on the street, they'd think you're handicapped/illiterate.
Xidnaf did a really good video on AAVE. After you watch it, you can scroll down to the comments and laugh at all the angry tribals getting pissy about Xidnaf 'taking ebonics seriously'.
https://www.youtube.com/watch?v=pkzVOXKXfQk