First I want to thank everyone for the replies. This is very interesting to read.
I'll be honest that I don't understand your point.
I mean if I was playing Crusader Kings, I'd agree with you. But in a game like Civ, I'd say that imbalanced starts are intrinsically just plain wrong. Now I understand that only so much can be done about that - but having at least the starting city have equal bonuses across the board would to some degree peel back the troubles associated with starting in the middle of nothing for example, or in Tundra. I've also previously suggested that the Capital and Holy City should always have access to Baths, simply because it's strange to exclude such an important building. 10% bonuses are HUGE.
To your point though - while it's true that in different games and different starts I may play in different ways by taking different policies, I'm not sure how any policy tree could ever catch me up from an awful start that I have no control over. At best I can mitigate by how many points I lose or extend my Capital's fall by 20 turns. In other words - my point is that certain "imbalances" are game-breaking or unnecessary, while others are not. Starting city yields are the kind of imbalance that I don't think should be acceptable. And while Tundra starts are of course horrible, somehow that seems to me more acceptable than my Capital's getting less yields simply because it's not next to fresh water. (my suggestions, for lack of better description, amount to the idea that all Capitals are "implied" as being next to Fresh Water)
Well said.
Yes, starts are imbalanced, and that's good. It's strategy so you should take decision of policy and what to do after revealing some surroundings, meeting neighbors and how far they are, evaluating capital potential in food, early production to wonders, etc.
I'll be honest that I don't understand your point.

To your point though - while it's true that in different games and different starts I may play in different ways by taking different policies, I'm not sure how any policy tree could ever catch me up from an awful start that I have no control over. At best I can mitigate by how many points I lose or extend my Capital's fall by 20 turns. In other words - my point is that certain "imbalances" are game-breaking or unnecessary, while others are not. Starting city yields are the kind of imbalance that I don't think should be acceptable. And while Tundra starts are of course horrible, somehow that seems to me more acceptable than my Capital's getting less yields simply because it's not next to fresh water. (my suggestions, for lack of better description, amount to the idea that all Capitals are "implied" as being next to Fresh Water)
No, why should I bear the displeasure of playing with Huns that cannot build a single eki around capital due to rivers or tundra? I am playing for fun.
Well said.