To make amends for these henous crimes we now think that everyt culture is equal - if not better than - our own. Initial immigration was from the Carribean who have a very similar cultural background (no not the same, but similar *) in both language, code of law and religion. We then thought** "what the hell" and to really pay for our crimes have thought it best to allow an anything goes as how else to show how contrite we are?
* I disagree. All the West Indians I met, when I was younger, regarded England as the Mother Country. They were schooled the English way. They had English laws.

**Who are these mysterious 'we'?