Not really a lesson was it? Just a sentence, but point taken. I'm able to be patronising on a range of different subjects that I know very little about.
I was just pointing out that a large number of Africans, a number very similar to the population of Sheffield funnily enough, went through the port to a life time of unimaginable misery, and a lot of those nice buildings in the city centre were paid for by their misery & a big wedge of the £16bn that we paid the slave traders to stop trading, sat in the bank accounts in the city, and made sure that the city and its wider environs flourished. If for any reason Sheffield doesn't have as nice a collection of Georgian buildings, then it's something I'll put up with, because as a generality my city was built on honest labour, was a centre for the abolitionist movement and did not profit from the misery of my fellow man. Everyone is free to have their own views, but Bristol is not a city i particularly care for.
Apologies if you already knew that, and apologies if you took my comment as a dig at you.