"Linux and BSD has been running merrily on ARM since the last century."
And making little headway into the data centre where the hardware has remained dominated by Intel.
To save you reading the article again let me explain. The hardware has remained dominated by Intel because there was a standard configuration built around the Intel processors so that there was a generic platform for OS vendors to target. All that time ARM devices were wrapped up in a host of different platforms so the builds required customisation. That was not what DC operators wanted.