I do not think anyone will disagree with you as they are either out of pocket or in jail. Recently they arrested the operators of Onecoin in India.
Here's what Wikipedia says about Onecoin https://en.wikipedia.org/wiki/OneCoin
https://www.quora.com/What-is-OneCoin-and-is-it-legitimate
http://www.mirror.co.uk/news/uk-news/who-wants-onecoin-millionaire-you-7346558
https://news.bitcoin.com/beware-definitive-onecoin-ponzi/
https://cryptoinsider.com/germany-moves-onecoin-blockchain-scheme-threatens-bitcoin-blogger-legal-action/

Anyone thinking of putting a penny into Onecoin should seek medical attention urgently.