No, UnitedHealth Group made $22B in profit in 2023. Only about half of that profit came from the UnitedHealthcare insurance business. The other half came from the Optum side which is a mix of non-insurance stuff. Optum makes huge profits on software: if the software business was spun out it would be one of the top 20 US tech companies.

https://www.unitedhealthgroup.com/investors/financial-report...