yes... do you have any idea about health insurance in the US or the Affordable Care Act? You don't get insurance and enroll from a cold call. That's not how it works.
If you have questions about why something is considered a scam... ask them. Asking if they are a "legit company" or if they are 85% scammers is pointless. Real companies scam just like real people. If you are outside the US, ask how health insurance works and why anything else is essentially a scam.
Ask specific questions. Most numbers are posted here because people have received calls.
Also, health enrollment scams have been linked to lead generators.