Not so fast, because Apostle Paul gave this AFTER... our Lord Jesus had already ascended to the right hand of The Father's throne in Heaven...
Italics are mine:
1 Cor 15:22-28
22 For as in Adam all die, even so in Christ shall all be made alive.
23 But every man in his own order: Christ the firstfruits; afterward they that are Christ's at His coming.
24 Then cometh the end, when He shall have delivered up the kingdom to God, even the Father; when He shall have put down all rule and all authority and power.
25 For He (Christ) must reign, till He (Christ) hath put all enemies under His feet.
26 The last enemy that shall be destroyed is death.
27 For He (Father) hath put all things under His (Christ's) feet. But when He (Father) saith, all things are put under Him (Christ), it is manifest that He (Father) is excepted, Which did put all things under Him (Christ).
28 And when all things shall be subdued unto Him, then shall the Son also Himself be subject unto Him (Father) That put all things under Him (Christ), that God may be all in all.
(KJV)
That is about the future Milennium reign of Christ Jesus upon this earth, AFTER His future return. Only THEN... will He put all enemies under His feet. That has not happened yet today. If only ONE believer on Christ Jesus is killed by Christ's enemies today or tomorrow, that is absolute proof this Scripture is yet to occur.