Imagine your little startup patents something and is egregious copied by a large, rich company. If the startup doesn't immediately have the funds to sue, the other company just gets to use the tech without the patent with no consequences. Seems unfair.
I've tried this with latex and git doesn't lend itself that well, and it's certainly not convenient enough for online live collaboration with non-technical users.
All these people concerned about birds could have 100x the impact by focuding thrir effort on campaigning to ban pet cats instead, if that's what they really care about.