Me arguing for copyleft does not prevent users from choosing to use alternative software, either. It does encourage them, though (which I can only assume is your point). I also didn’t write that every ‘FOSS’ project should use GPLv3.

The freedom I care about (because I think it’s very impactful and extremely important to preserve) is the freedom to use, know, share and modify software. Licensing is a useful tool to help ascertain that freedom, but beyond that, I consider the freedom to choose a licence nowhere near as important.