Actually they really don't love the rising temperature at all, because that combined with human activity directly is killing a lot of their food sources, which is why many are endangered. Wasps are important pollinators as well as bees, so if they go it will make life even more difficult for a lot of different flowers. Also, how often are you actually stung by wasps or hornets? Do they actively hunt you down and attack you? I've spent many calm evenings sitting and watching wasps fly around various flowers and bushes right next to me and never been bothered by them.

Thinking we just need to save honey bees is kind of like thinking we need to save cows from extinction, they're domesticated.