Should UK apologize for the slave trade?

You may join in this absurd conversation here.

While they’re at it, they should probably apologize (oops, apologise) for this:

1884: British engineer Edward Butler constructed the first petrol (gasoline) internal combustion engine. Butler invented the spark plug, magneto, coil ignition and spray jet carburetor, and was the first to use the word petrol.

What awful people.