Demand for plant based meat having peaked is evidence against meat consumption declining, not in favour of it. And I don’t think any serious unbiased analysts have suggested that lab grown meat would exceed 10% of global supply by 2040, if it ever becomes viable. See https://​​forum.effectivealtruism.org/​​posts/​​2b9HCjTiFnWM8jkRM/​​forecasts-estimate-limited-cultured-meat-production-through for a much more typical and pessimistic take.
Demand for plant based meat having peaked is evidence against meat consumption declining, not in favour of it. And I don’t think any serious unbiased analysts have suggested that lab grown meat would exceed 10% of global supply by 2040, if it ever becomes viable. See https://​​forum.effectivealtruism.org/​​posts/​​2b9HCjTiFnWM8jkRM/​​forecasts-estimate-limited-cultured-meat-production-through for a much more typical and pessimistic take.