The problem with this is that at least early on in the game it's impossible to keep up with population growth on your home world, never mind on your far more reproductively active colonies.
I mean, at game start a Construction Factory produces 10 BP per year, and it takes 120 BP to construct 1 Construction factory. This would imply that, roughly speaking you can double your construction capacity every 12 years, and a population growth of about 6% per year. But you aren't building just the construction factory.
You also need mines to fuel those factories, and those either cost 120 BP, or 240. Luckily the 120 BP ones require an equal amount of personnel, but they don't have equal production. You are very unlikely to get a planet with .5 Duranium, .25 Tritanium and .25 Vendarite after all. So you probably need an uncertain amount of more mines because that's just how Aurora rolls, and that's if you don't need to import materials from a place you can't mine except with an automated mine.
And automated mines? They triple the effective BP cost of running your ever expanding economy. And a 2 percent population growth is something even your homeworld is likely to exceed in the early game. Which I repeat, renders it impossible to keep up with your ever expanding economy.
You need to invest enough research in mining and construction speed boosting technologies to keep up. As this analysis doesn't even consider the costs of building all the other things you need to create an empire, just the things you need to keep building it.