I'm going to need some sources on conspiracy theories being harmless - Pizzagate[1] lead to someone firing off live rounds in a pizza parlor, QAnon is also tied to some kidnappings[2], anti-vaxers have led to somewhere in the range of 50-60k deaths[3] - anti-maskers... it's a bit too early to tell but some folks put the number around 130k[4]...
Ah sorry - to infer, the MMR vaccine had measles on a steady downward trend - the article is highlighting a 15% raise in cases. I think it's safe to attribute 15% of the 140k worldwide deaths to the anti-vax movement since we were actually approaching eliminating that disease (like we did smallpox)
What's wrong with conspiracy theories? They're as harmless as The X Files.