We just ran into this situation and would like to learn what the League admin and other players think about this:

From civ wiki [civilization.wikia.com]

"The World Congress is automatically founded when any civilization meets all others and finishes researching Printing Press. If no one meets these conditions, then the Congress remains unavailable until any civilization reaches the Industrial Era. When the Congress is founded, the Civilization in question becomes the Congress's first host, after which the host will be voted periodically (every time the Era changes). Being the host provides several advantageous benefits in the World Congress, such as additional delegates and ability to propose resolutions."

In a later era start (Industrial and above), everybody start the game with Printing Press already discovered. As the game needs a deal breaker on who to assign as the first host of World Congress, it goes with the first player in the turn order (game creator). This gives an advantage to the game creator. I guess as the second condition to become the first host is to meet all other civs, maybe other players also have a shot at being the first host, but I am not sure.

Anyway, in many games where there are several players, getting a little bit extra votes from being the first host may not give huge a advantage, however the game we are having this issue discussed is a Theme 13, which is a 2vs2 Industrial Era start game with no City States (Theme 13 game in question) [multiplayerrobot.com].

In Theme 13, the above explained situation results in the game creator's team having 8 votes, the other team having 6 votes and this situation will NEVER improve for the second team, because they can never increase their votes by gaining CS allies, they can never win host elections, they can never make their Ideology the World Ideology etc.

How should this be handled so that we can have a fair game?

PS: Just wanted to note that my team is the one that has the vote advantage, so I am not trying to rally support to get out of a disadvantageous situation.

PS2: I know that the game creator also has an advantage on Wonder Building, if 2 players finish a wonder on the same turn, the first player in the turn order gets is. However, I think this is a bit different than that as in that case the game host still has to show effort, provide the hammers to build the wonder quickly, here the advantage is already there without any effort and will affect the game until the very end.

EDIT: Apparently in the above referenced game, one of the teams (half of the total players) reached Modern Era, and I just learned that that is the trigger for the Special Session of Host Election. Otherwise votes would have been 5 vs 4 as each member is supposed to get 2 votes and the host gets +1 vote in the Industrial Era.