> To reiterate, this is absolutely a comparable machine to the Mac Mini in terms of performance.

Reiterating is not the appropriate response after someone has already detailed many ways in which the performance a 5800h is not in the same league, none of which you have even attempted to refute.

The more truthful claim you could have made is that you don't need the extra performance (far more plausible, given that you bought a new machine with a four year old chip), or that you needed storage capacity more than you needed performance.