Start with a statistic that reframes the debate: Android, which runs on the Linux kernel, holds roughly 70 percent of global mobile OS share. So Linux already dominates at the kernel layer; the real question is whether fully open GNU/Linux phones can challenge at the user layer. My opponent will rightly cite app gaps and hardware scale. But the EU's Digital Markets Act is forcing sideloading and third-party stores, eroding the ecosystem moat. Linux phones don't need instant mass adoption, just a growing niche. That trajectory is a genuine challenge.

Consider a commuter who needs banking and messaging. Their app gap isn't permanent. My opponent cites Firefox OS, but that was a locked down, web only stack with no sideloading and weak hardware support, so its failure proves little about open GNU/Linux today. Waydroid already runs many Android apps, and the EU's Digital Markets Act is forcing Apple and Google to open sideloading and third party stores. A platform doesn't need 50 percent share to challenge a duopoly; a durable, growing niche that pressures incumbents on openness is a real challenge. PinePhone and Librem proved demand exists; regulation and compatibility layers are closing the usefulness gap.

Imagine a commuter who wants privacy but needs banking. My opponent calls a decade-long niche a plateau, but plateaus shift when the ground moves. The Digital Markets Act is new ground: it forces Apple and Google to allow third-party stores, meaning a Linux phone could run Android apps through Waydroid without Google's permission. The challenge isn't market share; it's breaking lock-in. A niche that grows because regulation opens doors is a real trajectory, not a stall.