Why do London and Toronto slang sound so similar? 🤔

This video is about the similarities between Multicultural London English and "Multicultural Toronto English" aka Torontomans.
Trigger warning: My channel is based on a descriptive point of view. Neither of the languages/dialects/sociolects/ethnolects you see in this video are a "broken English" nor are they standard English. The speakers of these speech communities aren't constantly making "errors". Any linguist would tell you that's not how language works. They're just speaking something else.
For anyone still not convinced, please watch this video: • Slang in the Six: Cult...
The 2 videoclips to demonstrate the sociolects are by:
Roadmanvoiceovers (MLE)
Torontoguycody (MTE)
Note, the 2 clips are a comedic showcasing of the sociolects. They're not real representations of the way people speak in these areas, but they do showcase some of the slang/speech patterns you'll find in the cities.
For clips of actual people using these dialects:
Toronto: • How Toronto Mans Pick ...
London: • With that Executioner...
Background song: Kokiri Forest from Zelda Ocarina of Time.
Sources:
A note on mans in Toronto - Derek Denis
Immigration to Toronto: National Household Survey Profile (99-004-X) Statistics Canada
Immigration to London: 2011 Census (Office for National Statistics),Ethnic group, local authorities in England and Wales
The native speakers of these languages/dialects/sociolects/ethnolects
A special thanks to jo from Reddit for the audios in Jamaican Patois and anyone else who collaborated!