This is not entirely accurate. What you are talking about is a specific form of PE, called a vulture fund. Many companies use traditional PE to buy them at the current market so the founders can get paid. Many of these deals are structured where the founders retain some portion of the business so they can cash out again when they scale and the PE firm sells it down the road. (Typically 5-7 year cycles)
The sky is not falling... and if PE somehow does destroy LAB, someone else will create another niche-putter company and we can three putt for net-par with their $1,100 putter too.
Capitalism FTW.