With all due respect to the Muslim podcasters you are referring to, there's a bit more to it than that. Reasonable people can disagree regarding how relevant Mamdani's views on Israel are to his qualifications and potential to be the next NYC mayor. But NYC is unique in that it has slightly more than 1 million Jewish residents (their views on Israel no doubt vary, but my guess is the majority generally support Israel to a large extent) as well as at least 750,000 Muslim residents (again, I assume their views on Israel also vary, but my guess is the majority do not generally support Israel). So Mamdani's views on Israel are potentially relevant to almost 2 million NYers.