"Fact not madness Jim."
Serfdom replaced slavery - it was exactly the same - in fact and in principle - workers belonging to masters
Dictionary definition of serf
a person in a condition of servitude, required to render services to a lord, commonly attached to the lord's land and transferred with it from one owner to another.
2. a slave.
British ports were an essential part of the Slave Trade - go visit the Slave museum in my native Liverpool
A reminder of exactly what you said
"There never was slave labour here, "
You have chosen to totally ignore the massive rise in modern slavery in Britain - why wouldn't you ?
Jim Carroll