I think that is a pretty worthless argument, what your saying is build a load of units so we can not use them but have them around to look pretty and thus people will ally with us and give us a load of tech as we have so many units.
be realistic. Sure we can bully people into doing this but how long will it take for a couple of teams to gang up on us if we did that, not very long.
it is a lot harder to attack in civ 4 than it is to defend, however if you gain a tech advantage on your foes then you can punish them pretty easily, by not picking a financial or a philosophical civ then we are already at a disadvantage in that we cant make use of our traits to propell us scientifically. Naturally this would still be ok if we we're playing a bunch of AI as we could just run along and kill everyone, here however it is not so good- teams will group together and share techs, eventually if you stand around being the hardman you are going to get out teched and killed.
The colossus will help us with that, it gives a bonus to
every sea tile, it allows us to effectivly keep pace with financial civs until we can make use of our GP city and also build some more cities.
regarding ZXZY's spots, i acknowledge that they are good spots, however not only would the maintenance of these 'good spots' kill us but it would be impossible to defend, we would in effect need an army twice the size of a normal civs just to defend both patches- heaven forbid we actually want to attack someone ourselves.