Neither do I. There's too much and it's far too complicated given the dissolution of the British Empire after WWI and WWII. Rather than get bogged down in the detail of who thinks what about what happened to whom and when - and it turning into Black vs Asian vs Trans vs Indian vs Romany vs White vs Jewish vs LGB vs the Ad-Infinitum nonsense, we simply agree these things are of secondary importance to adherence to a set of equality principles that can be rigidly enforced by a state committed to equity.
And the more I read writers from minority groups deciding Keir Starmer not coming out to bat for their niche interest means he won't be getting their vote at election time, the more I despair. By far the best thing the right wing ever did was convince sub-groups to go to war with each other over who gets what. It's the gift that keeps on giving. :o)