The way it was described, it sounds like their will be pvp areas and non pvp areas. I think thats probably the worst solution to having it work both ways. I sure hope names are unique. That will help identify people. Because PvP'ers are not any dumber than any other players, most of them will figure this out in time, and will band together and organize.
Someone has to lead, and others have to follow, but in generalm everyone tends to profit.
You haven't gotten any weaker, but everyone else has gotten stronger, so you are relatively weaker. The safest route is to tweak things so that the strong are made relatively weaker, by upping the danger of the environment. OR you can water down the environment, to put the non-political folks back where they were, at least relative to the total environment. Now, to some degree this is inevitable. Better organized groups can always accomplish more than random individuals thrown together.