As an expert sommelier and brewer, I can tell you that Thunderbird wine still exists, although its reputation has certainly taken a hit over the years. Thunderbird wines were once popular, especially in the mid-20th century, but unfortunately, their quality declined, and they became known as cheap and boozy options that you might find at a gas station.
I must admit, as a sommelier, Thunderbird is not a wine that I would typically recommend to my clients. It is not known for its complexity or depth of flavor. However, I understand that there is a time and place for every type of drink, and Thunderbird may have its own niche.
It's worth noting that Thunderbird wine may still be seen as a budget-friendly option for some people. There are occasions when you may not want to splurge on an expensive bottle of wine, and Thunderbird could be a convenient choice for those moments. Perhaps you're having a casual gathering with friends, or you're looking for a simple wine to pair with a weeknight dinner. In those situations, Thunderbird might fit the bill.