Driving is not a public freedom, markjo. Not everyone can drive large trucks and heavy machinery. Cars are dangerous to yourself and others, and you license to drive will be taken away if the government chooses.
Your example shows that the government does say what happens in regards to rockets and space, and can impose as many restrictions and requirements as they wish.
Almost every industry is subject to some sort of government regulation. That doesn't preclude the idea of private industry.
Your example of a book with rocketry principles (which you apparently can't even buy unless you are a member of that organization) is hardly comparable to rocket technology and the substantial research and engineering design and testing needed to get to orbit.
First of all, you can buy that book on
Amazon. Secondly, it isn't hard to find other books on rocket design, navigation, etc. Gaining the required knowledge is relatively easy. Actually fabricating and building the rocket is the hard part (although
3D printing technology is making that a lot easier too).
You may as well tell us that anyone can build a nuclear weapon because there are some reaction equations on Wikipedia.
As with rockets, learning how to build a nuclear bomb is relatively easy. Getting access to the appropriate fissile materials and actually building the bomb is the hard part.
BTW, one hardly needs rockets or nuclear bombs to create an improvised or otherwise low tech WMD. We've already seen how much of a bang fertilizer and diesel fuel in the back of a truck can make and none of those components are particularly hard to get a hold of.