How about people stop using unsafe languages such as C and C++?
More info: https://github.com/rust-fuzz
Disclaimer: I am the author of the rust fuzzer honggfuzz-rs.
My guess is that they'd use Rust for new code.
Beside, as much I agree with the benefits of a memory safe language, and I do believe in the urgency of promoting techs like rust, C and C++ are going to be part of our lifes for a lot of time.
If you gotta use knife, make sure you have the tools to make it sharp.