Salahudin al Ayubi and shias

[Furkan]

Assalamu alaykum.

Can someone explain to me why imamiya twelver shias hate him in particular. I would understand if the hate came from the ismaili shia but what's the matter with those twelvers honestly? 

They criticize him with a bunch of lies while even the christians admitted the justness of Salahudin al Ayubi...

Maybe it's because twelvershiism is all about being anti-sunni and since salahudin regrouped the sunnis after they were divided in little, weak states?

[Rationalist]

I don't support his unjust killing of the Ismailis either, but as you know the 12ers like the monopolize the emotions. They don't care about Palestinians either expect that this conflict strengthens their dawah.

I debated with many 12ers who point out that Ayesha stepping out of her house got so many people killed. I then replied by saying why do you care? The people of Kufa at the time were not Rafidah, so their status in your school of thought is either at intermediate state or towards hell.