The same term remnant is in Acts 15:17 which comes into belief when the raised fallen tent of David is up, which is Christ.
CONTEXT!!
Acts 15:17 (AKJV/PCE)
(15:17) That the residue of men might seek after the Lord, and all the Gentiles, upon whom my name is called, saith the Lord, who doeth all these things.
The "residue of MEN".
Rom 9:27 (AKJV/PCE)
(9:27) Esaias also crieth concerning Israel, Though the number of the children of Israel be as the sand of the sea, a remnant shall be saved:
CONTEXT!!
"concerning Israel" and "of the children of Israel"
Also read CAREFULLY the passage that Acts 15:17 is REFERRING to:
Amos 9:11-12 (AKJV/PCE)
(9:11) ¶ In that day will I raise up the tabernacle of David that is fallen, and close up the breaches thereof; and I will raise up his ruins, and I will build it as in the days of old: (9:12) That they may possess the remnant of Edom, and of all the heathen, which are called by my name, saith the LORD that doeth this.
"Possess the remnant of Edom, and of all the heathen"? How will THEY possess the remnant of Edom, and of all the heathen?
And, of course, you completely IGNORE this verse in the SAME passage:
Amos 9:15 (AKJV/PCE)
(9:15) And I will plant them upon their land, and they shall no more be pulled up out of their land which I have given them, saith the LORD thy God.
Someone that purports to be so smart as you claim to be should be able to under CONTEXT.