True, which is why Hawking theorized that the big bang itself came from a singularity just like what is found inside a black hole. Which means it is possible that inside every black hole, is another universe.It's my understanding that a spinning black hole would indeed have magnetic poles. That's how they radiate and decay. And they do indeed radiate but it is at such a rate as to be imperceptible. They will, eventually, be the hottest things in the universe. They will even, eventually, pop. They're supposed to release a lot of energy when they do as nuclear forces reassert themselves as dominant over gravitational ones.
And, according to Einstein, a black hole has to spin. Everything is in motion.
I mean that's why Hawking is famous, right? Hawking radiation. Without that he's just some physics professor with MS.