What would America be like today if our government had always been run according to the platform of the Libertarian party?

The full platform for the Libertarian party can be viewed here. What would the impact on America have been if we had followed this platform all along? While I admire some of the ideas, others concern me. I’m most interested in the impact of the following points:

2.2 Which says protecting the environment is the job of individuals, and wouldn’t be enforced by government but encouraged through environmental advocates and social pressure. What kind of shape would our rivers, dumping sites, etc. be in now?

2.4 Which would repeal income tax altogether and abolish all federal programs and services not required under the Constitution. What programs and services would we have? What, exactly, is required under the Constitution?

2.8 Where they posit that “education, like any other service, is best provided by the free market” rather than government. Would this mean that the poor could never afford to be educated?

2.10 Which would do away with Social Security, and leave it up to the individual to save for retirement. What would happen to the senior citizens that didn’t save voluntarily?

Anyway, you get the gist. Please paint me a picture of modern-day America, as if it had always been governed in this manner.