Like driving a shitty car because you really like a certain brand of seat covers.

I think this view is a little short sighted. I am glad that you don't seem picky about your peripherals, but they are very important to others. As someone with a disability, if my mouse didn't work on Linux, I wouldn't even bother trying. I have spent a lot of money on peripherals and them working in Mac and Windows, but not Linux would be utterly rage inducing. It is irritating enough that I can't adjust the dpi in Linux, but it is at least usable. I am still salty that every single pair of headphones I own use proprietary codecs that are not supported.

I absolutely do not blame anyone for not using Linux if their peripherals do not work. I get that it is the "fault" of proprietary drivers. Unfortunately, some devices are not popular enough or too difficult for someone in the Linux community to want to work on it. I don't blame the community either. However, telling someone they can't use their mouse or keyboard the way it was intended isn't going to convince anyone to use Linux.

My point is, hardware costs money, is a physical device that you touch for hours at a time, and is configured to make your life easier. Tactile and ergonomic comfort is important. Macros, lights, and dpi settings are important to some people. For me, it is just dpi and smooth scrolling. Not everyone is happy with a cheap mouse and keyboard or wants to throw perfectly functional electronics in the bin.

But don't Razer products actually have a decent support on Linux?