A point of brutalism is "form follows function and "showcase the bare building materials" (1) - in other words, that's how the material looks, naturally. Bare, unpainted concrete is in fact more natural and honest than painted concrete. And brutalism deliberately leans into that naturalism (of modern materials).
I am still buffed they are people defending brutalism. It is one of the biggest mistake in Architecture and one day these buildings will vanish.
You are confused, describing is not the same as defending.
> It is one of the biggest mistake in Architecture
I don't necessary agree, but I didn't even take a position on that.
> and one day these buildings will vanish.
Over enough time, so will all buildings. But the sturdy one will last longer.
But I am happy to know that brutalist churches in Germany will be destruct at first than older churches.