"the websites above mention that they can no longer purchase laptops without a Microsoft license, which hurts their ability to remain profitable" None of this

"the websites above mention that they can no longer purchase laptops without a Microsoft license, which hurts their ability to remain profitable" None of this has anything to do with Secureboot. "In this situation, you could argue the market would create a viable alternative" So blame the OEMs for not viewing the Linux-using crowd as a viable market. Target the persons who see you as unprofitable.