Framework proved repairable laptops can work, but almost nobody is willing to buy one
(www.xda-developers.com)
"Most of the market" includes the segments of commercial support contracts for office laptops which Framework doesn't even target. Then you have the next biggest which is "go to Costco/Walmary/bestbuy and get what is on sale. So Framework simply cannot be a majority brand without those.
Among the remaining segment, e.g., developers that get to shop around and buy whatever they want? Its fairly popular.