I dont think any computer user who picks 1 platform as being their god and every other platform is satan is sane. Your just limiting what you can do thinking that way (a marketers wet dream is a person who buys their bullshit and ignores the other options).
Why would people want to hack OS 4 to run on a mac anyway. If your so gung ho to want an OS with no apps for it you might as well shell out a ton of money for a motherboard (amiga one) that has no hardware for it. Just makes sense.