

Keep away from these people if you can. Focus on your own development. Keep grafting. Use it as motivation, rather than a reason to have your confidence knocked. Know that a lot of people bullshit. Part of bigotry is that it undermines the confidence of people that aren’t part of the in-group, thus maintaining the in-group’s position of advantage. It is drummed into rich white people at expensive schools for this very reason. I’ve no idea what things are like where you work/live, and I understand that trying to address this via hr might just be detrimental, but if they are breaking laws then get evidence and speak to somebody about it.
Really good quality cooking equipment always says it is not dishwasher safe. I don’t know how true that actually is, but washing stuff as you cook is definitely part of the process for me, so it is fine for me to hand wash.
For the record: I particularly like cooking, and bought a load of great quality cooking stuff that will last for life when I had money - I am not being a dickhead.