The Finanar war is an example of the size of corp you are talking about. Parabellum had well over 150 structures. The fleets involved in destroying them were probably the largest in recent highsec history…with there being over 2000 in the system at one time. Both Wrecking Machine and Blackflag’s HQs were destroyed. The battles ( there were several major ones ) were epic…and the entire ending turned upon Parabellum making a mistake that prevented some allies corp swapping, if I recall correctly.
We need more wars like that. I can understand the point some make that how can corps/alliances get that big if they get bashed early on. But not every small corp is going to survive anyway.
Perhaps the simplest solution would be to provide small corps a ‘grace’ period during which their structure is immune from wardecs, but they equally cannot wardec anyone else. No hoops, just an easily understandable grace period…maybe 2 months or something like that.