@Kayriel
The world is pushing in Paradis Island's stool, and Marley's first in line. Even if this is all going to fail, they need to leave behind a legacy of fear in the people who kill them. Make them thankful they survived the wrath of the titans, instead of so arrogantly murderous and greedy towards innocent victims.
lol funny you said this. Why do you think even though Marley after become world power after titan war is not universally hated like Eldian. Because eldian fucking used titan as a tool of terror when they was in power. Eldian don't even need to leave another legacy of fear cuz they already did so.
And realistically, those colossal titan is fucking useless in modern war which is what the world technology currently progress toward.
- They are awfully slow aka prone to any assault
- They are huge means that they can't be used to arrange surprise attack or hide their presence. which mean they are only threat for static or crowed target like fortress, city, or crowd trying to escape. To things like tank, warship, etc they are a joke since tank and ship will just simply avoid them.
- They are destructive like a bomb which make thing such as capture enemy or coordinate with other military unit a pain. Image what if World military just instead airdrop ton of soldier inside the island? Those colossal titans can't attack the enemy inside the island because that means they are attacking their own people.
- They can't be produced voluntarily. To make another colossal titan mean someone on island must sacrifice himself. Survived soldier can go home after war, titan can't
and lastly they can be killed, while not really easy, it is not really hard either to kill a target that is slow, has no stealth ability, have no projectile attack and can't attack recklessly when its allies are around. I would say even if Eren want to use all colossal titan, he is fucked if the world is dead serious on eradicate all those island. And how can they cross Ocean and secure airspace, those in previous chapter those zepellin just floating above their head yet they can't do shit. Those titan just like mammoth that went extinct because human hunting. The only upside their huge size bring beside their power is their intimidation.
And since they can't secure the airspace but want a total war. The world military can just do shit like continuously drop poison, destroy food supply, poison the water supply, burn the crop etc etc. The islander can't do shit if they don't have food to fed themselves.