This has nothing to do with Git and everything to do with GPL. GPL is the reason why things like Linux and Git have such a strong community: if you use GPL code

This has nothing to do with Git and everything to do with GPL. GPL is the reason why things like Linux and Git have such a strong community: if you use GPL code, you have to contribute back to open-source. GPL is greedy in the sense that it won't let you combine it with closed source code. It's not greedy in any monetary sense. Either be part of the community or find another tool.