I don't dispute that languages like Java, C# and Go being widely used. And while the systems built with them may be critical within a very local scope, such as at the company level, pretty much all software of global importance is still implemented in C, C++, or some mix of the two. This is true almost 20 years after Java came on the scene, almost 15 years after C# did, and almost 5 years Go did.
Go is perhaps the only case where this may change, given how its implementors have expressed interest in porting their existing C code to Go. But that still won't change the fact that the operating systems, databases, and other software systems that Go code often interacts with are still very likely to be implemented using C and/or C++.