In such case, Jesus can exist in different human forms simultaneously also in different countries during the same human generation to avoid the partiality, because the different countries might not have contact with each other during a particular old human generation. In fact, this was true because the countries were not having any contact with each other, a few centuries ago. God is the Father of all the people in all the countries of this Universe and therefore, He should be impartial to all His children. You have to agree with this point because only one God created this whole Universe. It will be further better to replace the word Jesus by a general word like “Holy Spirit”, because the word Jesus signifies a particular human body only according to general sense of the public. The word “Holy Spirit” does not signify any particular human body and therefore it will be reasonable to say that the Holy Spirit is the God and this Holy Spirit existed in all those divine human forms. Infact, the Holy Spirit is the purest power of God that enters a particular chosen deserving human body in every country during the same human generation. By this, every country gets equal benefit. When Jesus existed in a particular place, the other countries were not having any communication with that Holy place of Jesus. Those human generations in other countries must have gone to the hell because Jesus was the only saviour. Of-course, some people who were associated with Jesus also went to hell since they disbelieved Him.
Why then does Jesus claim that the Father and Him were two different witnesses? (John 5:37) When Jesus was baptized, why was a distinction should between the Father, Son, and Holy Spirit? (Matthew 3:16-17)
Bhagavathgita says “Manushyaanam Sahasreshu…..” which means that millions of people will try to reach God but only one can reach God. This means that the spiritual path is narrow with one or two devotees only who can reach God. So you should not follow the majority as example in spiritual path. Majority goes to Hell. Will you also go to hell? Diamonds are in minority and gravel stones are in majority. In worldly matters you can follow the majority. But in spiritual line there is only one Jesus one Buddha one Sankara etc., If you are in the association of majority you will be polluted by them since they induce the worldly poison through their conversations (Luke 13: 20 & 21). If you are in the association of the Satguru you will be spiritually strengthened by His gospel.
Acts 4:12 >
"Nor is there salvation in any other, for there is no other name under heaven given among men by which we must be saved."
In context, this refers to Christ.