Why the fuck would he care about a bunch of stupid muggles fighting thinking they’re the master race when they can’t even cast flippendo? If anyone would care it would be Ron’s father as he studies Muggles but Dumbledore has purposely separated from muggles and gave Harry a pass when using magic on them several times. He clearly doesn’t care. And again why would he? We’re ACTUALLY subpar opposed to wizards instead of theoretically subpar as Nazis would believe. If Wizards gathered around screaming that they’re the master race, not a punch would be thrown because they have fucking magic.