Would you agree that, in the contemporary USA, ethnolects are as or more important than dialects?

[Daco Celtic]

Typical American slobs who looked like they rolled out of a bed then picked up some clothes off the floor , in their dirty room, gave it the quick sniff/smell test then threw it on non-ironed looking like they are not grown adults.

This is Homeboy Industries, a company that gives jobs to former gang members. Do you except them to be dressed like GQ models?