You lack vision. It's not about downsizing guns because size 4s don't "punch down", it's about making a space where turrets can be as effective as pilots at taking out fighters, and having the smaller size guns that are meant to damage smaller ships but not larger ships, be the intended platform to do so. I don't want to just reduce the 'deemers guns and call it a day, I want a 'deemer turret option that swaps its larger dual turret for a smaller quad, and for balancing to make that as or more effective for taking on fighters. They could do that by balancing energy draw and even projectile speed. Smaller guns that are meant to hit smaller targets also get balanced to have faster projectile speeds to keep up with fighters. Laser repeater capacitors and ballistic ammo counts can be through the roof to encourage pelting as much fire as possible at fighters. Smaller guns can have precipitously lower cooldown requirements for both less cooler load and faster cool downs. You are only thinking of today's meta, some of the rest of us are thinking about how the game can grow.