> This comment reveals a total lack of basic understanding on this topic.

My thoughts as well, Keytruda alone has been a miracle to many many people at this point (quoting GP: "scientists, for decades, have tired [sic] to harness the immune system to attack cancer and it almost never works."), I frequently get ads for local CAR-T centers (unthinkable a little over a decade ago)

I believe the comment was talking specifically about immunotherapy rather than personalized mRNA. But I'd agree it's still misinformed as immunotherapy has been a game changer across multiple cancers.