Sense has nothing to do with comics...men can't fly and ring won't stop supernovas.
If being in the center of a huge iceberg instantly is a help to magneto, then he's going to be even better off when the glacier is gleefully tossed towards the sun.
It makes perfect sense that Mags would get stomped by HV, first, it's hotter than a star...that alone will give him problems...second, and here is the one people ignore...Superman controls his own HV, meaning that if even if Supes was in front of him, he has to try and wrestle control for that particular part of the spectrum from Supes.... ain't going to happen. Third, the distance thing...Supermans powers work across far greater distances than Mags, rendering Magneto useless.
Black holes are forces stronger than anything mags has produced, so are the centers of stars, if Supes is strong enough for those, Mags isn't an issue.
Last is the speed thing. Mags would never detect a superman who used his speed.
Once again, unless Superman lets him do something, Mags isn't doing much. This isn't Rogue with Colussus and Cyclops mixed together that he's fighting Uni.
Back to topic, Blue Superman high end is where we left him off. He trumps Mags.
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Humans are afraid of the dark.
And yet… At the same time, we’re fascinated and bewitched by it.
Maybe that’s why humans drink the darkness that is coffee.
But i was rereading through that Superman vs Magneto thread, and damn if DemiGawd didn't get under the skin of alot of yall. And the best part, is he did it all by himself. Learned a thing or two there.