Originally posted by pym-ftw
I'm going to assume your talking speed and only speed while implying more than that?
Saying anti-matter > a black hole is dubious and relative. It depends on how much anti-matter and how big the black hole is. Both vary in their comic depictions, you have black holes the size of a base-ball, and some big enough to consume a universe. A regular black hole can be tanked by a high herald, but a huge one can probably kill a high herald. E.g., Red-shift was "killed" by one, and a 2 light-year wide black hole has damaged Thanos more so than any high herald has ever accomplished. Plus, Surfer has traveled into the core of a black hole filled with anti-matter, and emerged unscathed, so there's that.
You probably shouldn't "lol" at Surfer manipulating Mjolnir. In his very first fight with Thor that's exactly what he did; Surfer used his PC to separate Mjolnir from Thor, and while Thor was busy trying to get his hammer back (and he did), Surfer used that opportunity to blast Thor into submission. That tactic brought Thor down to Surfer's mercy. Although Surfer was amped by Loki, prior to the fight Surfer was depowered and only had a fraction of his original power.
I agree with your pacifist statement though. Surfer has directly stated he could open black holes in the eyeballs of his enemies or phase a person out of existence by manipulating their atoms, but he admits its not in his character to do so.