it's not just for ideological reasons ...
It is actually simple. We did not like the other playground (that is, windows, and so), and so we made our own playground (that is, linux) -- which indeed looks much better -- and what next? To turn linux back into the thing we have spent so much effort to leave?
If a company wants to sell us proprietary software according to proprietary rules, why don't they look for customers in windows, or some other platform, instead of complaining about the lack of access to the linux market?
How welcome can anybody be, if the first thing they want to do, is to complain about, and insist, that all of us change the rules of the place they have just arrived in? Anybody who wants to join, must simply accept the rules of the place. And if they do not like it, why do they want to come over?
Furthermore, complaining does not help. The free and open-source world (FOSS) is the result of millions of people publishing their software under a FOSS license, out of free will. They can get my software and source code, freely. Why would I not get theirs freely too? Aren't they a bit too self-serving?
Lastly, in order to change the rules, you would need to convince all of us to stop publishing our work under a FOSS license. It is not going to happen any time soon.
