The game already has a very limited player base, ripping it apart into two would just massively reduce the games activity. I am REALLY struggling to understand what you mean by timer dodging though, it feels like utter ignorance on your behalf given the fact that there is a US timezone player base to the game and it feels like you have a prejudice against them, complaining that they have timers set for content during their timezone, which would appear to me, a very toxic attitude towards that player base. There are plenty of US timezone clans in multiple nations. the option for alliances is always possible and at least in my eyes, a VERY enjoyable part to the game, I really enjoy the diplomacy aspect.
You also talk about the griefing of the Swedish nation, the Swedish nation was formed to curb the domination of the Russian empire in the game, and its had a great success generating content for both sides, yes Sweden has been in a war and stomped the opposition in both wars (GB and Danes) to and excessive extent, but it is part of the game, it was a war and neither side could come to terms before it go to the stage it is at, mostly due to past grudges. Every player, clan and nation gets to decide on its alliances, terms are ALWAYS able to come around it just depends on the nations leadership to be willing to put aside past grievances and move forward, it should be down to the players to make alliances within the game, not the developers, to even out the port battle timers and the clan player base if the players of every timezone want content.
On a side note, Sweden shows up to damn near every single port battle it sets, they do not intentionally set port battles with the intent of not showing which in some peoples eyes is the exact same as tagging a player with having no intent of engaging and fighting that player, which I believe is a tribunable offence? correct me if i'm wrong there please.