Redis is proprietary software? Things licensed under the CDDL?

Let's look at a very easy and very real situation where the (imo) absurd restrictions of the GPL are actively hurting the Linux community:

ZFS on Linux. We have a fully features and powerful logical volume manager and filesystem that you have to jump through hoops to use and cannot be distributed as part of Linux due to license disputes. Software that was originally developed in an entirely proprietary environment that would have never had the source code see the light of day if it was required to use the GPL due to contractual obligations on other pieces of software used.

btrfs, et al, still have not caught up. With a more sane licensing approach, we could have had years of ZoL improving our lives as a default available filesystem/volume manager, and those with idealistic differences strong enough to want a "truly" open version could have been working on btrfs or other alternatives.

You are attempting to paint the world as completely bifurcated, and it just simply isn't the case.