Well, to admit - if GNU GPL is considered communist, I have no problem with that communist attitude;
I appreciate the opensource and free-software community very much, and, if I can, I contribute in finding and fixing problems and bugs.
After first starting with Debian in 96' and a 3 year intermezzo in the BSD world, I stucked with Debian - on servers from the very beginning, on all clients since 2003.
And guess what: I'm not missing anything. I got every piece of hard- and software to work; sometimes with temporary workarounds only, but there was never the moment, I wished Windows back. I'm living a happy IT life with GNU Linux only - the only pure proprietary devices in the networks are the DSL modem and the ethernet switch.
I admit, I switched away from PIC mcus to AVR 'cause of the lack of a fullfeatured opensource environment; yea, I know there is SDCC, but it's really quite far away from being complete yet; and since I did the step to 32bits, I have GNU ARM gcc, that's all I need.
Personally I don't want to spend money for software, although I bought an ancient Win7 licence for 5 bucks to run on my laptop - in case I have a stubborn piece of customer hardware unwilling to be maintained or updated on the Linux way. Otherwise I'm glad if I can save my bucks for the hardware.
The ones who want to use proprietary software, shall go for it. The only serious problem I see with the use of it, are our governments and medical facilities - which certainly work on sensitive data, also my personal ones, which I don't really want to see in hands of Big Data, where MS and Google certainly belong to. That also the reason, why I use my cell phone for nothing else but calling.