The video linked above answers a some of those questions. It is only 40 seconds long.

So which part of all those ecosystems are you claiming Europe could not maintain? Before you answer remember that Ubuntu is European, SUSE and openSUSE are European, Manjaro is European, most Arch developers are European, LibreOffice is European, KDE is European, GPG is European… I could go on, but, with all that shared expertise, are you sure that Europe does not possess the know-how to recreate and maintain all and every part of the Linux ecosystem?

Edit: When I say “European” I mean “started in and mainly run by people based in Europe”.

Eeeeh… Not really. Remember licensing guarantees the right to fork. Many developers are not from the US and I would bet that both Asia and Europe (and probably other continents too) have the know how to manage a fork.