Well, for those, who still keep their heads in the sand, I’ll remind that during the first days of the War there was the enormous expenditure of resources exactly for that purpose. All installation was guarded by huge fleets - and as a result one of the megacorporations (who was primarily responsible for CPD and Protectorate funding) was on a verge of bankruptcy.
That was a huge mistake. One of the way of winning a long war (and this war won’t end as fast as Executor Heth’s Liberation of Caldari Prime), is to build stronger economy than the enemy and build more ships and better ships, while killing theirs.
The size of our army and our fleet is enormous, and it is perfectly valid to mobilize everything to liberate a planet, which Tibus Heth did, and executed perfectly - it is probably the best executed military operation and the war in the whole history of our cluster.
But the size of the whole Federation is mindboggling. We can’t swarm it with our ships. If we do what your consider “total war”, we leave our flanks naked, we don’t have ship production - but we can’t stop Federation production fast enough. We will be winning over them all over the place. But we won’t be winning fast enough, either they will start destroying our homes left without protection, or they defend their own, and eventually we run out of ships while they will be replacing theirs. Thus your definition of total war equates to the definition of total defeat.
We actually have now about same state of affairs like during the days of that war. We have again gallenteans occupying our homeworld, and we again fight for border systems, just the position of that border shifted to new regions. That war lasted for dozens of years with systems changing ownership like now. The only difference is that we now have bigger toys and CONCORD which prevents us from getting even more bigger toys.