I appreciate you taking the time to reply, and not just dismissing the idea out-of-hand. I'll respond in a smiliar fashion for the sake of ease:
1) The increased range doesn't mean much given how fast fighters can close the distance. Besides maybe fighting NPC cap ships, it doesn't mean very much
2) Yes, I was completely wrong about the main gun not doing damage. I'd tested it out on stations and wrecks and it did none to those so I erroneously thought they did no damage at all
3) I wasn't trying to imply that there weren't different types of gun, but that it would make for more fun if they could be swapped between factions ships. An Bretonian cruiser fielding Rheinland weapons, for example. Maybe someone prefers the aesthetics of the Bretonian ship over the Rheinland ones, but prefers Rheinland weapons. Since all weapons seem to be compatible at the fighter level, why couldn't this be possible at the cap ship. I'm not advocating for cross-class (BS turrets on a cruiser) compatibility, either.
4) I'm not saying they shouldn't have their own specific purposes, just that they should have better survivability. Cruisers are DN killers (by merit of their main gun damage and range) but don't have nearly the armor and longevity, gunboats can be outfitted with large cannons to help take down cruisers, or many turrets to be portable anti-snubfighter platforms, eta...
5) I meant there aren't any visible hardpoints. I can't equip/unequip (or even see) weapons or shields, this would dovetail well with concern 3
6) I'm not saying you can't do it. In fact, I don't have trouble bringing down fighters -- if I survive long enough to land a hit. At present, snubfighters still melt certain capships with even small numbers
7) Nobody is advocating for this server to be "more like" Discovery. If any of us wanted to play on Discovery, we would, but we choose to play on Crossfire in stead for a variety of reasons. I'm not suggesting the cap ships become unstoppable one-man shows so that the server populated exclusively with people flying around in big ships, just that they are made slightly more robust so they can be game changers if they show up. That's one of the reasons I advocate for (significantly) higher prices, maybe a monthly in-game fee to keep them running.
I'm just spitballing to see if the class of ship can't be tweaked to make them a little bit more enjoyable, or more relevant.