Grape vines are native and a part of our forest landscape. Some people want to cut all the grape vines on their property. If the grape is growing into a crop tree, then by all means cut the grape. If it is growing in a poor quality tree, consider allowing the grape to grow. The wild grape vines fruit, and wildlife eat the fruits. I’d hazard a guess that grape vines in trees have benefits that we don’t know about. I generally don’t see grape vines totally smothering trees like in the photo below.