However, I have to say it again, being called a boot-liker and a tech-bro does not bear the weight of a couple of centuries of slavery behind it. Maybe "nazi" would have a similarly charged undertone, but again, if someone tells me that I'm a nazi, I check my behaviour for what might have made them say that and then just stop being a nazi. It's not subtle being a nazi, or a fascist, or a sexist or a bigot.
Racist slurs can not be corrected for, you can not sit down reflect on your life and stop being Black, Hispanic, Asian or Middle-Eastern. But you can if you're a nazi.