It is not the answer.

What are the building blocks for encryption?

1) An cryptographic algorithm

2) Some form of key generation

3) A software implementation of 1) and 2)

4) A binary distribution of 3)

5) A computer that executes 4)

In practice, chances are those 5 are all rigged. They are rigged because you have so far trusted:

- That there are no tricks in the algorithm or its practical implementation

- That there are no tricks in the key generation algorithm or its practical implementation

- Hundreds of contributors to the software implementation of those algorithms

- The guy that compiled the software into binary form and distributed it

- The compiler used to compile the software and all the libraries and dependencies the software has

- Hardware manufacturers

So, common sense tells me that because you have trusted so many people, in practice, it is very unlikely you can have end-to-end encryption or any real ambition to have privacy.

This does not even consider more aspects, like your operating system, your sources of entropy, etc.