I'm curious to compare this to other countries that have state owned/mandated insurance and are so far still mostly covering everything and which are always touted as "superior" to the US, who "have the most expensive health care system". Can't use Canada as OHIP et. al. don't cover much and the same employer tied insurance scheme as in the US exists and is necessary.
An example of a country with "good healthcare" and such a system would be Germany. Extra insurance does exist there as well nowadays from what I understand but health insurance isn't tied entirely to employment and the extras are things like a 20 EUR per month to cover the co-pay on large and expensive procedures. While private insurance exists there too, I want to compare to the often touted "free healthcare" i.e. public system. There are still different providers even under the one public system.
So from a quick search, Germany has insurance rates from ~14-16% of gross salary, half of which the employee pays from their gross salary. But most insurances have an extra percentage they charge on top. I found one as an example that charges 17.29% total, which if you're self-employed, you have to cover yourself (to be comparable to your marketplace bronze plan being entirely self-paid).
Now the question becomes: Are you paying more or less as a percentage of your salary and by how much?
(and side question for your parent I guess: how does that compare to the $10k the employer pays, which would be 8.645% in this example)