"I dont think class discrimination is as hurtful as racism because there isnt the history there."
Um, yes, there is, only we're not taught the history.
Serfdom existed for hundreds of years in Europe, only the black plague really put paid to it as it led to a depopulation and therefore labour shortages, which meant that the rigid class distinctions couldn't be enforced anymore.
In the middle ages and right up to the industrial revolution, what colours, fabrics and style of garments you were allowed to wear, was dictated by your class.
There were regular forced migrations - eg the crofters in Scotland. Under Elizabethan poor laws, you could be transported to Virginia or sent to the galleys, if you were found to be a mendicant once too often. (And yes, the galleys were pretty much the same conditions that the transatlantic slaves endured. The difference was that technically, the sentence wasn't forever, but if you survived you were unusual.)
Working class people who rebelled, as in the Cornish rebellions under Henry VIII, were hanged en masse. Those who fought for the vote, were the subject of state brutality, eg the Peterloo massacre.
The industrial and agrarian revolutions meant working class rural communities being destroyed and moved to the cities where the average life expectancy was at one time, 27 years old for an urban man. Between 1914 and 1918, millions of working class men were simply butchered in the first world war as their lives meant absolutely nothing to those in charge.
That's just off the top of my head. No history? Really?