Musa
Some companies have a culture of intimidation and bullying until one's confidence is destroyed before waving their tiny willies at you so they can feel better about themselves. It's not race based, it's because some folks are arseholes and get their jollies that way. Fortunately it's becoming less of a problem as CRM becomes more prevalent but some old die hards still try it on. I doubt a place like 43 would subscribe to those tactics but not being witness to them, refuting your word is difficult on that score.
Glad your new school is working out better but be aware that these tactics will continue to pop up among the small minded in your aviation career. If you'd kept it impartial and described the problem instead of blaming it on race I reckon you'd have got a far more balanced and informative response.