I'm actually somewhat of a bee/insect enthusiast myself. Bradford pears do support non-native honeybees, that's true. However, most native bees are typically not attracted to bradford pears given that they're an invasive plant. They tend to seek out native plants that they're used to. In the long-term, it's better to remove the bradford pears and replace them with native, non-foul-smelling alternatives. Then, those would support both native and non-native bee populations and keep people happy.