This obviously isn't about competition or making something better, it's clearly about leftists who refuse to use something simply because it has a trademark, but since it is open source they can make a free copy and put their name on it instead.
Actually, no. It's because of Mozilla's terms of licensing that trademark; for example, demanding the right to code review for anything published under that trademark. Mozilla's demands are sensible, but they apparently don't work with the rules that the Debian uses.
but since it is open source they can make a free copy and put their name on it instead
And they can't do that with your beloved BSD license?