We can have a million and 1 european civs in game and I don't think anyone would complain, as long as there there's good representation outside of Europe too.
There seem to be two main issues concerning the preference towards European civs in this thread.
1) The preference for Brazil, a European colonial state, as a new civ over Persia/Mongolia/Ottomans which were perceived to have been civ staples. Meanwhile European staples remain sacrosanct and it's hard to imagine they would ever be dropped for a lesser known European civ, let alone a non-European civ.
2) The number of European staples, Germany, England, France, Russia, America, Greece, Rome, is completely out of proportion with the non-European staples, Egypt, China, India and Japan.
So we have the issue that the are more civs with perceived value inside of Europe than out of it in the first place. And then we have the issue that even those civs outside of Europe that are valued are still perceived as expendable, with 4 exceptions.
And then the problem is that this game claims not to be just about European history but about humanity and its great achievements. It definitely isn't just about the last 500 years of history. But in reality this game prefers to celebrate recent and familiar empires achievements with a significant weighting against the older and more obscure to western audiences. And i think that is largely down to the fact a western developer is making it for a western audience and that's all it is, because they've chosen civilizations that are still well off, still recognizable and generally within the same western cultural group that the producers come from. This jars with the grand message the game gives off, and people come into this expecting to pit the worlds best against one another, when really its Europe's best and a few that Europeans would recognise against each other.
The argument that this thread is really trying to put forward is not to get rid of any of what it currently prefers, but for the game to open it's eyes to different periods of history when other great empires were on top and put forward something different for once.