The macOS built-in curl, git, pip, python3, perl, ruby, and openssl all read /etc/ssl/cert.pem, which still has the emSign root, but they don't check revocation like Apple's Secure Transport libraries. This is, uh, a problem. git and pip especially. I added a short-term workaround to https://emudhra.we-have-a-problem.com/#macos-curl.