We don't use a metric of what I 'need' to do to determine what freedoms I should have. I don't need to purchase a 64 ounce mountain dew. That hardly means that I should be protected from doing so if I choose to. It's not exactly analogous to the drone situation, but it's a good representation of why the metric you propose is NOT one than anyone worried about personal freedom would ever support.
I don't need to make an argument of why I should be able to do something. You're trying to put the onus on the users, when it fact the onus is ALWAYS on the person trying to take away. Do we have systems in our cars that prevent us from crashing the gates at the White House? Do we have systems in our phones that prevent us from abusing the 911 emergency line?
I could continue, but frankly if you don't understand or agree with the argument it's pointless to go on. You comment regarding the United States being 'not so different' that China is fairly telling. It's not based in any semblence of reality. Censorship? Political arrests?
You argument is completely nonsensical on both counts.