You are totally right…but. There are good wines and bad ones. Wines that are made dishonestly. Wine that has so much sulphate in it that will leave you a terrible head ache. And not always those wines are the cheap ones. If you worked in the wine industry you may know how many ugly tricks are possible. So, despite your personal taste that’s no questionable, actually there are good wines and bad ones. And if you know the difference and see someone drinking bad wines you should say that. It’s the only way to improve the overall quality. Some new wines seems very good but it’s not. They are totally artificial they are scum.