You're completely off the mark. Fusion doesn't support x86 workloads on top of ARM largely because the ARM fork of ESXi doesn't support x86 workloads on top of ARM (and AFAIK, there's no future plans to, either).

Fusion and Workstation inherit most of their underlying capabilities from ESXi. Barring a few functionality/usability flourishes unique to workstation/desktop use cases...if ESXi doesn't do it, Fusion and Workstation won't.