In every Hidan fight, hell- every SWORD fight in this show when two people have weapons of some kind there is ALWAYS a lock. A moment where two characters do this:
You must be registered for see images
And clash blades, seeing who can push the other one back.
This is where Suigetsu smashes the scythe, his power arm combined with the Executioners Blade destroyed stone and entire walls, find me some proof that Hidan's scythe is 'indestructible' and you can have this one. He loses his power if he doesn't make sacrifices so he can't just keep going forever and ever against every enemy. His immortality isn't limitless.
You must be registered for see links
Read the section on his immortality. It mentions nothing about him needing sacrifices.
As for the scythe I remember reading somewhere that it was indestructible. I further this with the moment when Hidan threw those two swords at Asuma and Asuma hit them with his charka blades. This completely shattered the swords. When Hidan engaged with his scythe the charka blades had no effect on the scythe. Even if it's not indestructible it shows that it is extremely strong. I don't think that Suigetsu wold be able to break it if Asuma couldn't.
BTW although I disagree with your view I am glad you are actually putting thought into your points. While most people just troll without any reason.
Also I don't believe Hidan is a Kage or any thing. In terms of the Akatsuki I would rate it like this:
Tier 1 (Among the most powerful Naruto characters, the power of a god): Pain
Tier 2 (Very few can challenging them, only a Kage could match them): Itachi, Sasori, Orochimaru
Tier 3 (Very powerful, could probably hold their own against a Kage): Kisame, Kakuzu, Sasuke (Mangekyō Sharingan not eternal).
Tier 4 (Some of the most powerful Jounin out their, few can match them): Deidara, Hidan, Konan
Tier 5 (Powerful but nothing that special) : Suigetsu, Jugo, Zetsu
Tier 6 (Weak by Akatsuki standards) : Karin, Yūra, Mukade