Had Jesus been God, was he God only for the House of Israel to the exclusion of all other nations?

The Promised Messiah 1835-1908 says:

God commences the Holy Qur’an with the following verse which is contained in surah al-Fatihah:


The Holy Quran : Chapter 1: Al-Fatihah
[1:2] All praise belongs to Allah, Lord of all the worlds,

That is, all perfect and holy attributes belong exclusively to Allah, Who is the Lord of all the worlds.

The word ‘alam comprises all different peoples, all different ages and all the different countries. The commencement of the Holy Qur’an with this verse was designed to counter the views of such people as attempted to monopolise God’s unlimited providence for their own nation and imagined that the other nations did not belong to God or that having created these other people, God discarded them as being of no consequence, or else perhaps they were shelved to oblivion by Him, or (God forbid) they were not even created by Him.

To illustrate this further, we refer to the view of the Jews and the Christians, still commonly held by them, that all the Prophets and Messengers of God belonged only to the House of Israel, and that God completely ignored the religious and spiritual requirements of other people, as though He were displeased with them and that, despite finding them in manifest error and ignorance, He showed least concern for their spiritual welfare. As is also written in the Gospels that Jesus Christ (peace be on him) observed that he had been sent only for the lost sheep of Israel.

Impossible as it is, yet by way of argument let us assume that Jesusas did claim to be God. In that case, for him to confine his beneficence to such a small circle as the House of Israel does not behove the magnanimity of God. Had he been God, was he God only for the House of Israel to the exclusion of all other nations? He is known to have suggested that he had no concern for those who did not belong to the House of Israel.
But he answered and said, I am not sent but unto the lost sheep of the house of Israel. (Matthew, 15:24)

http://www.alislam.org/library/books/Message-of-Peace.pdf

I love Jesus, Mary and Muhammmad.

I am an Ahmadi peaceful Muslim