Luckily, this applies mostly to English speaking countries. The rest of the world seems to require some actual criminal action for prosecution.
Edit: Your claim that this is limited to mainly English speaking countries is not even true.
"Most nations prosecute inchoate acts (such as conspiracy and incitation) in their domestic criminal law."
https://www.law.upenn.edu/journals/jil/jilp/articles/1-1_Ste...