> If you are not compiling your operating system, every library and every application from scratch then you are blindly trusting third parties.

This implies that trust is always the same and that if you trust one entity (because you did not event limit your answer to corporations) you are supposed to trust everyone and if that is not the case then you have some kind of logical error in your thinking. It also implies that losing the trust in one entity, but not some other, doesn't make sense somehow.