Some languages (like Clojure) very significantly reduce the possibility of thread-related bugs. Clojure in particular was designed with multi-threading in mind,

Some languages (like Clojure) very significantly reduce the possibility of thread-related bugs. Clojure in particular was designed with multi-threading in mind, so I think it is a fair point that some languages will have more trouble with this than others. Try multithreading in C++ vs Clojure and the difference in amount of effort is well beyond trivial.