There are decent black people in the UK speaking the King’s English and embracing English life, and there are hateful thugs embracing the criminal life speaking an exaggerated incomprehensible patois.
Blacks are vastly over-represented among criminals there as they are here. Search “London” and “knife crime.”
And there are the usual educated social justice grifters and peddlers of resentment who eschew criminality but are making life worse in England.