I think the argument for moderation is the worst in the religious context.
Pascal was right about his Wager in one way. If god exists, it should change everything for you. Especially the christian one. Eternity in pain or pleasure outweighs everything.
If that is your reality, how is failing god moderation?
Seriously if you don’t want people to die from cancer at all, how is that not extermist?
Are reference point defines “moderation”? Look at us vs eu politics.
Even if you want to define moderation as the average or median position in a society, then Nazism can be moderation if you get enough Nazi together.