Hu? Where did you see I was *forcing* people? I used my mouth, not a gun or such. :)
I know, I would refuse BSD like code in my projects as they refused my GPL code. (MIT/public domain is fine since it is allowed to relicense under the GPL).
I understand them because I would do the same, period.
Then, I'm trying to code on the side of it, but for Linux (no cross kernel bloat) with the Linux GPL. It means I ate the bullet and I'm trying to work around the issue.
There are many aspects that can be shared despite the different open source models. For instance GPU hardware programming.