How true is this?

Indeed, only a handful of people in the entire world can code review cryptographic software like OpenSSL. It is very likely easy to hide theoretical (theory in the mathematics-sense) backdoors in open source since the cryptography community is super secretive (only privileged people have access to academic literature on the subject!).

Aaron Swartz died for your right to have everything for free. You are literally shitting on his rotting corpse every time you pay for the fruits of science that millions like him stood up to the racist government by bravely unfriending MIT on Facebook.

Information wants to be free.