Those star ratings are all completely justified. The item was never delivered, meaning under item description category, 1 star is warranted. You refused to sell the item, therefore 1 star on shipping the item, as the item never arriving is as slow as you can get in terms of shipping times.
Your communication, such as inferring I have a mental illness and now rudeness like "grow-up and get a better hobby" and "YOU are the one who it crying about not getting his toys" (why even sell vintage toys to bbegin with if you are unwilling to deal with collectors), calling me an asshole and the "I'm not talking to you" line before, have all ammounted to woeful communication, hence 1 star there (incidentally, as this is clearly what you mean by "professional", you'll find that your definition of the word is rather unique to put it nicely).
You insisted on a shipping method which would have seen the item damaged without a doubt, thus 1 star in shipping charges is also relevant.
Furthermore what you have said by "wanting to discuss this face to face" is a clear threat of physical force and as this also breaches eBay rules, I will be reporting this also. For someone who speaks of a need for maturity, you would do well to take a long hard look in the mirror concerning your complete lack of it during this transaction.