It's actually not that ridiculous or difficult to reduce your proprietary software usage. I also think it's a fallacy to say that free software is generally low-quality -- let's not forget that there is plenty of shoddy, badly-supported proprietary software out there too. The worst of it also tends to include spying and malware.
Granted it was much easier to avoid proprietary software around 10 years ago before SaaS and smartphones took off. I think the community has been slow to adapt to these changes, but that isn't a reason to give up hope.