Not a beekeeper but it’s pretty easy to connect the dots from bee extinction to ecological collapse. No pollinators leads to decreased germination which leads to less food for the lower levels of the food chain and on and on
How is that an easy connection? Your argument essentially says without bees then nature as we know it falls apart catastrophically - I am incredulous you could interpret this as obvious. Species go extinct all the time and yet Earth is still doing just fine, apart from the damage humans are doing to it.
> No pollinators
Bees are not the only pollinators
> leads to decreased germination
A decrease is not the same as elimination
> which leads to less food
A decrease is not the same as elimination
> for the lower levels of the food chain and on and on
Your argument is a about knock-on effects, which certainly exist. But you seem to think if any point in the chain breaks, it leads to ecological collapse. Why do you assume nature is so fragile? I am not a biologist and maybe bees are special or there is something I do not understand, but I certainly don't think it's an obvious conclusion.
You might want to investigate about the sparrows in china, quick version; a campaign to exterminate the sparrows to increase grain production ended up with famines.