there is no socialism in history which has ever successfully been implemented

Yet while so many socialist ideologues seem willing to make this “no true scotsman” argument on behalf of socialism

I take issue with this. Socialism has been incredibly successful everywhere its been implemented. There are some people calling themselves socialists, who accept all the capitalist propaganda about actually existing socialism at face value, and unfortunately they often do dominate socialist discourse in the imperial core. But anyone who has studied and learn about the USSR, Cuba, China, Mongolia in earnest, and learned from these movements, cannot but be awed at their achievements. The bottom article lists many of them for the USSR, and China in the modern day has some even more impressive achievements in lifting more people out of poverty than any other country in history.

This is a long topic that I can suggest more reading, but I recommend these introductory articles / videos:

• Do Publicly Owned, Planned Economies Work? audiobook
• What about the USSR, wasn’t it authoritarian? Watch this brilliant talk by Micheal Parenti, or read his article, Left anticommunism, the unkindest cut, audiobook
• Does capitalism work?