also, your faith in "VM" insulation appaears greater than mine. if i dont trust a VM i dont trust the host running the VM.
others have different opinions and that's ok. my systems run to my standards, however quirky they may be. im stating opinion here, not attempting to inscribe Sysadmin Commandments. them's written on the wall of the bathroom stall.
edit: just for reference, the last cpu i could say i trusted was before speculative execution was a feature. since then its more about risk mitigation. i'm not paranoid, there's people worse than me, and they're nuts. I'm just cautious and lazy.