It's not a bad game. You simply didn't like it. Learn the difference. You made the declarations: "its not a great game" and "gameplay is simply bad". You state it all matter-of-fact-like. That's not an opinion.
Up to you though. You're the one that makes yourself look like a fool in front of everyone when you say that Shenmue is a bad game. You're the one being ignorant. If you want to be ignorant then you're going to get called out. Like I have with you here. That's how ignorance works.