This came to mind only fairly recently during the back and forth on the matter of Carriers for future GalCiv games or even being implemented in GalCiv2 somehow.
It is merely an analysis of the 'logistics' (not in terms of Logistics in GalCiv's mechanics, necessarily) to support carriers.
How big are the fighters in comparison to the capital ships in this game? Has anyone bothered to think about this with respect to this subject? A Huge's base size (and the size that the Miniaturization merely expands upon on an even scaling principle) is 80. A Tiny's base size is 16. At best, you could fit 5 of those Tiny ships inside the Huge, based on these values, but then the Huge couldn't do anything but hold those ships. It wouldn't even have the space to have the drive or range capacity to make such a thing worthwhile.
This is not only statistically true, but the visual sizes of these ships also doesn't lend credibility.

As shown above, the ship sizes are in steps both visually and statistically. The best choice for a carrier fighter would be the middle-row Tiny. In this visual depiction, it appears to have the least substance to it. Almost the entire frame is taken up by the cockpit, with presumably barely enough room for the baseline engine and the most basic of life support systems to keep the pilot alive. You could potentially fit alot of these inside a larger hull.
Let's decide to use the
Star Destroyer middle-row Huge for the Carrier. Potentially, you could maybe fit six or so of the declared 'carrier fighter' in that frame with reasonable success. Even more if you wish to consider the larger ships to be scaled down from their true size - but the statistics seem to tell me otherwise, so let's stick with the idea that they are all to scale to eachother.
Now, six fighters isn't much of a complement of craft for a carrier. Modern-day aircraft carriers carry dozens of fightercraft. The
Enterprise, for instance, has capacity for 85 fighters. To be able to haul that many Tiny hulls (which, if the Human hull appearances are to be believed, are as small as you could possibly make a spacecraft), there would have to be a ship with a Hull capacity of 1360 by default. This is exponentially larger than any possible Huge hull.
In Homeworld, carriers tend to have capacity for around 50 fighters or 25 Corvettes. Homeworld 2 may have changed this - but in addition to the carrier's capacity, the Battlecruisers were also given launch bays so it could hold its own fighter complement - which essentially made the Destroyer the only proper capital ship (frigates tend to be considered 'under' capital ships) to not be able to carry a complement of fightercraft.
These two classes of ships are hundreds of times larger than the fighters they could carry. The fighters in GalCiv, however, are not so infinitesimally small - at least according to the game mechanics and statistics.
The long and short of it is that, as things stand, no ship could function as a carrier. The scaling is just too far off for it to work. Unless you intended to have four fighters each to a Huge-hulled Carrier (with the remaining 1/5th of the Carrier dedicated to speed and range to distribute among its assigned wing).