you still haven't said on what basis you think the HRE fits the bill for any of your theories.
It appears to me that you are are comming up with arguments that have
nothing to do with the scriptures I pointed out.
The kingdom of God came on the day of Pentecost, the Catholics themselves
will tell you that their church represents that kingdom of God here on
earth.
Also Paul tells us that Jesus rose and became the first fruits of those
that slept, Hosea 6 and revelation 14:3and 4 tells us who these people were
Rev 20:4and 5 tells us their part in the kingdom of God.
So yes it all has to do with the holy Roman empire.