not to nit-pick, jango, but you omitted an important aspect of the whole first amendment deal. see, the first amendment was actually designed so that the states would be charged with legislating free speech, religion, & assembly. you neglected to mention the 14th Amendment, which makes it the federal gov't's responsibility.
additionally, would you care for me to list all great people of the past, say, 100 years, who graduated high school (and even college!), and compare that to a list of notable people (in a positive manner) who didn't make it through high school. i suspect that the former list would be longer than the latter. as is often pointed out here in the US, college grads end up making truckloads of money more over the rest of their lives.