Griffith is sort of strange and I can see why he has apologists. Until the whole rebirth thing happened.
When he makes the choice, he's physically and psychologically broken. There's basically nothing left in his head but his dream of having a kingdom. I don't think the pre-torture Griffith would have so willingly sacrificed his army, but there are still constant hints that he has very little sense of morality. When he's reborn as Femto, I have no idea what's going on there. I thought that Femto was some kind of caricature of Griffith, all of his values and desires technically intact, but completely warped. Then Tower of Conviction happens, he takes his Griffith form again and "Oh, I don't feel any remorse for any of that. See you later." So, what? Was he just pure, manipulative evil all along, who happened to have a soft spot for/ needed Guts? That strikes me as annoyingly simplistic for a series that earlier tried to make us feel sympathy for a Count who eats people.
Well from my standpoint I always felt wary of Griffith, I felt like he was the sort of person who wanted to do the right thing and be respected but only as long as it didn't get in the way of his goals, I think in reality Griffith was actually always quite an insecure and self destructive person deep down, when he can't control things, like Guts leaving, he can't help but act out and I think it's a side effect of always being above those around him, he felt like a protagonist with plot armor surrounded by fodder support characters essentially.
Griffith as he is now is just a glorified version of himself, the appearance is basically an illusion as he is still femto, he no longer feels things except under specific circumstances, he is smart enough and self aware enough that even if he feels nothing, he would never become a great ruler or build an amazing kingdom if he just slaughtered his way to the top and treated everyone like garbage, so he's basically on auto pilot just trying to achieve his ambition.
Griffith as he is now is just a glorified version of himself, the appearance is basically an illusion as he is still femto, he no longer feels things except under specific circumstances, he is smart enough and self aware enough that even if he feels nothing, he would never become a great ruler or build an amazing kingdom if he just slaughtered his way to the top and treated everyone like garbage, so he's basically on auto pilot just trying to achieve his ambition.
He is a very interesting character and there are various ways to interpret him without being wrong.
