In any case, the major issue you'll very quickly face if you start only building fighter/bombers is, where do they dock. You would need an awful lot of space stations, which are easy targets, or ground bases, which also are easy bombardment targets and pose the problem of going into orbit before being able to jump out where needed, reducing the maneuverability advantage by a huge margin.
Which is why it is better to have your fighters hosted in mobile, fully armed warships like Karunae or Solarises.
Not to mention that for the firepower required to take down a couple of fighter wings, you'd only damage a frigate. Which can be repaired. Your lost fighter and, more importantly, lost pilot, are much harder to replace.