So what you're saying is that Amazon or Facebook, which are only able to collect my data by my willingly using their software, and which I may stop using at any time I'd like, is comparable to the NSA collecting the data on every single website I visit, reading the content and metadata of all my emails, and any chat I may happen to take part in without my consent? I don't think so.
Actually, yes.
You can stop using the internet and wireless communications as well to avoid perceived government surveillance.
The ‘argument’ that you ‘have’ to use the internet and wireless communications in the 21st Century, that it’s impossible to survive without doing so is not valid.
And the NSA collecting the data on every single website you visit, reading the content and metadata of all your emails, and any chat you may happen to take part in without your consent is legal and Constitutional because you have no expectation of privacy with regard to these communications once that information is provided to a private third party, such as an ISP or wireless phone company.
Moreover, because the data are not collected pursuant to a criminal investigation or prosecution, there are no 4th Amendment search and seizure issues in play. That you ‘feel’ the government ‘might’ use the information against you at some point and in some nefarious manner in the future is not Constitutionally valid, and not grounds for making a 4th Amendment right to privacy violation claim in Federal court. See:
Clapper v. Amnesty International (2013).