#1 When you volunteer to be a soldier you voluntarily waive your rights to free speech in a few specific ways. You may not speak out against the Commander in Chief, you may not be a part of "extremist" political groups (extremist is defined as what your command says it is), you may not participate in many types of demonstrations. You can of course vote however you please.
#2 You are explicitly ordered not to obey unlawful orders and there is a process in place for refusing to follow an unlawful order. If you refuse to follow what you believe to be an unlawful order then you had better hope you are right because if you just feel you are right by the UCMJ and you are in fact not then your life will become miserable.
#3 Being in the military is a day job that bleeds over into many other areas of your life, the computer systems at work contain lots of sensitive information, things that you might find mundane. If you are deployed you may find it convenient to use a computer on NIPR in the TOC for personal use. Use that gov't hardware wrong and you can get in deep doo-doo. As a soldier I'd be happy to know they're helping me not do things on their hardware that would get me in trouble.
#4 Each soldier signs agreements to follow the rules around classified information, including not reading documents they do not have clearance to read.
#5 Being a good soldier requires shouldering an immense amount of responsibility without the frivolity of youthful indignation. In combat arms especially attitude and indignation get people killed. Indignation is reserved for private citizens, so use it on their behalf but don't expect them to rise up in defense of themselves.
#6 If a soldier is truly being wronged he or she knows they can go to IG, and if IG isn't working out they can write a letter to a congressperson and things will actually happen.
#7 If you think the way the military works is ridiculous, I understand, but don't assume that you know better. The military exists to kill people and break things not further social agendas (right or wrong). Most rules and regulations are written in blood, meaning someone had to die or get hurt, or some major loss of expensive or sensitive hardware happened to create that rule which you are ordered to follow.
#8 Most of your comments sound ridiculous to me (as a soldier), it's a different world with a different set of "BIG PROBLEMS" to deal with and you really don't understand it.