I am so grateful for the Go creators for having made it as it is. What worries me is the recent changes: modules (never had a problem with GOPATH) and Go 2 proposals. I hope they are able to keep their vision as it started.
I actually fall into the opposite camp. I never felt comfortable with GOPATH, but found modules extremely natural, perhaps because it's somewhat analogous to how NPM works: go mod init -> nom init; go get -> nom install...
Same as Rust replaced C and C++.
That anyone would want to write C/C++ or Java today is absurd, except if they're old.
Maybe time will tell, but I'd lay money that there will be a lot of people still working on C, C++ and Java codebases in fifty years, just like there is a boatload of COBOL and even MUMPS software still out there in the wild today.