Basically you are saying that you have faith that a legislative/judicial system that will send a SWAT team to break into your home to arrest you and throw you in jail for growing some plants will also stand up for your right to privacy? In the end, privacy, should you value it, is up to you and the choices you make.
My glib reply to you was highlighting the point that a defeatist attitude is cancerous to a happy life.
The thrust of my argument on this issue is that software development is fraught with error, secret courts are bad and humans are highly fallible. Mix all of that together and really bad things are guaranteed to happen.
When you use the online product of multinational corporations, they capture a small percentage of your network traffic. They try and piece together a snapshot of who you are so ultimately they can increase their quarterly profit. If they make a mistake, they'll show you a tampon ad. If they step outside of the law and are caught, they will face repercussions.
When a government secretly collects ALL traffic from its citizens and runs various flavours of analytics on this data, if it isn't actioning the results it is wasting its money and time.
Now what happens when these analytical programs make a mistake and flags you as a person of interest? Next time you and your family are travelling to Disney Land, you all get split up into separate rooms for a prostate exam and some brutal interrogation all because of some edge case an NSA developer neglected to code for. Meanwhile, you have no idea what's going on, they don't have to tell you what's going on and you are at their mercy with absolutely zero recourse.
This is just one of many Really Bad Things that could happen, and if everyone understood this, they'd be very afraid and looking to enforce the basic laws that were the foundation of their nations success and ultimately their happiness.