The "mystery of the worldwide deaths of honeybees" is looking more and more like it's as real as "global warming".
If it was actually a problem, honey production in the US would collapse at some point. Instead, it looks like it fluctuates a bit year-to-year, but is staying relatively consistent: https://www.beeculture.com/wp-content/uploads/2017/04/1blue2.png
Further, if glyphosate was in any way affecting bee populations, it would be most evident in states which use a lot of glyphosate and have high honey production: North and South Dakota and Minnesota.
US use of glyphosate is six times as much as it was twenty years ago. Where is the evidence that it is affecting bee populations?
Again, if bee farmers are buying live bees to replace a large amount of dead bees, production would not collapse. I don’t know. Another way to replace dead bees would be to have a service that removes live bee colonies from houses or other property.