Great Britain was directly responsible for slavery in the American colonies and they were the premiere slave traders from the 1600s until the very early 1800s.
Exactly. I was being generous by saying it was no better.
Well sure they were responsible for pretty much everything that happened in the colonies until 1776 but it’s a bit of stretch to blame them for slavery, if the Brits get the blame for slavery they get the credit for Washington and Benjamin Franklin too.
The Americans were perfectly free to ban slavery after independence, indeed it was not long after US independence that slavery and the slave trade was outlawed in the British empire while it continued long after in the US.
You can blame the Brits for many things, as you can guess from my name I could blame them for quite a bit, but American slavery? Meh, not so much.