That's kind of like saying that there is diabetes in your body every single day, and your body handles it just fine by producing insulin. Obviously that statement is nonsensical and essentially devoid of any useful insight.

I'm not even going to comment on this: "You're not a doctor, you're not qualified to tell the difference", because this is such a weird statement that I don't understand how anybody could utter it on this website.

If that is your standard for critical thinking, you are paving the way for anti-science rhetoric to dominate public discourse.

Treat people like stupid idiots if you want but then don't be surprised by the way they vote in elections as a result.

It's literally true that cancerous cells happen all the time in our bodies and no treatment is necessary because the immune system handles it. The ideal diagnostic test would only detect cancers that need intervention.

No, it’s nothing like that.

I won’t even get into the irony of you not realizing that not all forms of diabetes are related to insulin (diabetes insipidus) while simultaneously claiming that you don’t need to be a doctor to be qualified enough to make complex medical decisions.

In the first place, the analogy is wrong. You need insulin, you need blood sugar. Both SHOULD be present. Cancer never SHOULD be present, it just happens to be there often, like any other thing your body clears out.

Edit: the word “diabetes” originally comes from a word meaning “to pass through”. Literally the only thing linking all diabetic conditions is needing to pee a lot