I always ask myself why people waste time discussing / fighting over
useless talks rather than spending this time on something productive.
Ubuntu, Redhat, Debian, Fedora, Mint, Gentoo are all based on Linux.
Linux is their heart, lungs, legs, arms etc but they all have different
shapes, sizes etc like human beings do.
Example- How many people like beer? Beer is beer right? Thunderbolt is
beer, haywards is beer, tuborg is beer, kingfisher is beer. Now all
these are beer brands, do they have to write on labels everywhere that
they are beer. When someone goes to wineshop and asks for haywards, the
guy on counter knows he is asking for beer. Linux and all other
derivatives are same. Gnome, KDE, Gimp etc are all part GNU/Linux.
If we all have to contribute to FOSS or GNU/Linux then just pick what
you like and start contributing towards it.