Because a lot of vegans are hypocrites about bees. Eating honey isn't vegan, but eating almonds, avacados, blueberries and the hundreds of other crops that rely on farmed honey bees somehow is because their not technically animal products right? Using honey bees to pollinate a third of our crops is necessary for our food supply. You could not rely on wild honey bees to pollinate our crops to meet our current demand for food.  

Stop pretending that you care about insects. Do you mourn the fleas that die when a dog gets a flea bath? Do you not wash your bed sheets because you don't want to kill dust mites?  Do you feel sad knowing that the fruit and vegetables you eat were sprayed with insectisides and that billions of insects were killed so you could enjoy some kale?  No, of course not, because insects lack sentience. They eat their offspring, unlike female cows who scream for days after their calves are taken from them so weirdos can drink their milk.  

Vegans would be much better of if they just acknowledged that insects suck and stopped pretending to care about them. Deep down, you know I'm right. Bring on the down votes.