The cleaned out shelves at stores in my area, as well as online sellers like Amazon and Barnes and Noble either having delayed shipping or just being sold out would seem to indicate you might be mistaken.No only a few people will switch over. D&d is much easier to play and better for mass appeal . Pathfinder would have to come out with version 3.0 and literally d&d would stop selling at Barnes and noble etc.
other than here most local gamers aren’t even aware of 3rd party publishers
And let's be real, that's good for people who stick with 5e because WotC will have to put out better products if they lose enough market to Paizo.