agreed....chicanos and blacks may have had two-way influence on some aspects of the street (underground/below the radar) element but the influence on a civilian level (overground/mainstream) is one-sided towards blacks influencing chicanos. The only time you'll see a Mexican influenced "black" person is if they hang/grew up around Mexicans whereas a Chicano can/may exude "black" influence even w/o actually being around "blacks" because of what they soaked in/up from popular culture.
I look at it the way I see it. Today, I experienced a lesson I already knew when it comes to social interaction between Blacks and Latinos. As I type this response, I am at a dealership. One of the salesmen, who is Mexican, came up to me and started a conversation.
He commented on my kicks. My kicks were popular during the 80s and early 90s. Then he mentioned my sweatshirt (Gangstarr's Daily Operation album cover) and that segued into music. Basically, this man listened to the same music as me. He also used to be into kicks like me.
Point is that we may be from different cultures, but we both liked the Hip hop culture and was immersed into it back in the day. This was and probably still is common, but let some people tell it, this never happened.
Yes, some to many Latinos exclude Blacks from their social circle but the inverse can also be said. But, you have social circles where both coexisted peacefully. Some even intermarry (which ain't often discussed).
IMO, people are people. We may be different in many cases, but also share some commonalities as well. The only way to know this is by interacting with different people. One will be surprised how much in common one may have with someone just off of having a friendly conversation. This is what I know and have experienced most of my life in So. Cal.