That's a delightfully left-leaning Labouresque analysis of Scouse history. So basically, what you're saying is that you don't have a problem with Liverpool being overrun with foreigners, aslong as they learn to speak Scouse and buy an Adidas tracksuit?
Sure, there's a tiny sprinkling of imported negroes in Liverpool's history, but the percentage is absolutely miniscule and using it as an argument to appease mass immigration doesn't hold water.
To be truly Scouse or English for that matter, you have to be White European, it's that simple.