Sounds like those who enter into faith are individuals!
Scripture tells us He died for the Church as an entity. The Church is redeemed to salvation and eternal life! The world is not! I believe you are dodging the question! Some people on this Forum seem to be hung up on "the Nation Israel". Did Jesus Christ die for the nation Israel as an entity?
Romans 9:4-7
Who are Israelites; to whom [pertaineth] the adoption, and the glory, and the covenants, and the giving of the law, and the service [of God], and the promises
Whose [are] the fathers, and of whom as concerning the flesh Christ [came], who is over all, God blessed for ever. Amen.
Not as though the word of God hath taken none effect. For they [are] not all Israel, which are of Israel:
Neither, because they are the seed of Abraham, [are they] all children: but, In Isaac shall thy seed be called.
So yes He died for Israel, just not all Israel is of Israel.