100million ISK to declare war per week is not high enough. I would propose either the fee to be at least 1billion or to dynamically adjust the cost based on the size of the corperation (larger fee to war dec smaller corp and visa versa)
New / small corporations put in a lot of effort to get their first station, costing around 1.2billion Isk to setup. 100million is nothing to larger corperations and this can easily be seen by the amount of war decs some corperations are in (seen some with 50 concurrent war decs!)
Smaller corperations dont have the skill or isk to defend, especially when the larger corps use alts at the same time.
Eve wants to retain players, then give us a fair fight. We are trying to grow small corporations, where interactions matter and great experience happen. But its a real blow to us when our station gets war deced in high sec, and we just get beat down instantly and consistently as we are such an easy target for killmail.