Microsoft has 90% desktop market share. Software developers won't support other operating systems until they have more market share, and people won't switch to other OS'es until there's more software.
If the software you need only runs on Windows then you should pay for Windows. Those that can move to Mac, Linux, etc and get away with using Wine or other alternatives should. The markets for alternative OS'es will grow then more people will be able to move.
Sounds like you are stuck on the Windows environment. You should stay and pay for Windows. There's nothing wrong with that.
If the software you need only runs on Windows then you should pay for Windows. Those that can move to Mac, Linux, etc and get away with using Wine or other alternatives should. The markets for alternative OS'es will grow then more people will be able to move.
Sounds like you are stuck on the Windows environment. You should stay and pay for Windows. There's nothing wrong with that.