As you might be a very young person, probably some posh boy from the Home Counties... It's not you who decides what constitutes "genuine" racism.
Let minorities define themselves what they find offensive, listen to them and then avoid doing or saying things they find offensive. Do not hesitate to tell them that you find them calling you "white bwoi pussy yo" uncomfortable as well.
And one more thing - a genuine advice.
As you might be a very young person, probably some posh boy from the Home Counties... It's not you who decides what constitutes "genuine" racism.
Let minorities define themselves what they find offensive, listen to them and then avoid doing or saying things they find offensive. Do not hesitate to tell them that you find them calling you "white bwoi pussy yo" uncomfortable as well.