I recommend Rotten on Netflix [1] that has an episode about Avocado farming. The whole series is super interesting anyway and explores modern day issues such as lack of water, climate change and globalisation.
The fact is that crops take water to grow. All crops do. Avocados are on the higher side when looked at water used per pound (though not the highest), but they are still nowhere near the level of animal products. Avocados are also one of the most (if not the most) calorie-dense fruits, which means that their water per calorie is likely in line with most other fruit.
What exactly was the point Rotten was trying to make? That avocados are popular so now they are being grown more? who cares? You could say the same thing about literally every other fruit and vegetable on the planet.
Growing e.g. alfalfa, rice, cotton, or almonds in California (not to mention beef/dairy production) happens partly because water for agriculture is artificially cheap, not reflecting its true costs.
Youtube suggested it to me recently as well.
They are about as balanced and factual as a Facebook.
Reminds me of the YouTube video that take 15 min to explain a 30 second concept.