because it was haphazardly stitched together we ended up with healthcare that
1. does not cover everyone
2. it is rationed by for-profit companies
3. is is expensive and can bankrupt you
4. tied to employment which means you can lose it easily
5. confusing since you often have to deal with paperwork and multiple providers
If you are rich and can afford it the american system is great but it is awful for everyone else.