It’s not the after “a” war that causes them to quit. It is join corp A, war starts from griefing corp, they hang in for about a week, quit to corp B, a month later another griefing corp declares war, they drop out because it wasn’t fun staying in port with corp A, they join corp C, same thing happens… After a while they quit the game because:
a) They don’t want to be in an NPC corp, they want the social interaction of a player corp
b) They rerolled and the greifing keeps happening, because that is what happens.
c) They don’t want to play in lowsec, nullsec, wh… If high-sec is full of griefing war deccing corps, they couldn’t imagine what low and null sec is like.
Least those are the reasons that I’ve seen players experience. When they’d join my corp I was normally corp number 4 or 5 in a series of war decced corps that they finally gave up on EVE after. Those that were brand new generally dropped to go join another corp., because they were not interested in PvP, just mining at the time.
Not always that easy to avoid a major trading hub like Jita, or to just avoid Amarr considering Amarr is a great place to run a corp, in-my-opinion for a number of reasons I’m not going to post here because it isn’t relevant.
So no, players aren’t just “throwing their hands up” over a single war, they have been throwing their hands up over multiple no-point wars where generally one corp ends up staying docked up for the entire event. Which adds absolutely no content to the game, it’s just a pointless waste of time.
There needs to be real visible objectives for a war, least in high-sec, low-sec and null are different beasts. Especially low-sec where its more about controlling territory, sort of the same for low-sec but without the in-game framework.