Each and every time I read about the American health care system and the troubles it gives you guys I cant help but cringe! How in the name of all that's right

Each and every time I read about the American health care system and the troubles it gives you guys I cant help but cringe! How in the name of all that's right haven't you guys got a national healthcare system yet? You spend so much money (out of your premiums) just lining the pockets of insurance companies and all the bloat that they come with.... you realise in a NHS system 100% of that would go to paying for your treatment, so it actually works out cheaper overall! And that's not even taking into account conditions like cancer or something requiring regular expensive treatments and medicines that are all covered by the NHS over here (For the uneducated: In the UK ALL hospital/doctors treatments are covered by the NHS, in Wales all medicines and prescriptions are covered by the NHS and in England you pay a maximum of £6.50 (~$10) for any/all medicinal prescriptions regardless of actual cost/value) Seriously: "America" the only country left in the western world without a national healthcare system....