As we get into summer remember that wasps' aggression is in large part because they are starving to death because all their food has been bulldozed to make room for buildings and roads. Plant some native plants. Wasps are pollinators, but their mouths physically cannot get into a lotta the favoured decorative/garden plants. Leave some rotting vegetation outside to attract bugs. Leave some rotten meat outside. It's their third choice after pollen and bugs, but the first two choices have been systemically exterminated by capital's expansion)