As per Bhagwat Gita, it is not only that God created all of us but also that God himself is seated in everyone's heart. Below verses of Bhagwat Gita explain that only. As God is seated equally in everyone's heart, whether he is rich or poor, black or white, man or woman, small or big, weak or powerful, so we should treat & love every human being equally. We should not discriminate with anybody based on caste, colour or creed etc. We should not hate anybody in any case as hating someone is just like hating the God seated in that person's heart. As we all are Children of God only, so let's love all human beings equally.
prakriti-sthani karshati" (Bhagwat Gita: Chapter Fifteen verse 7)
"Sri Krishna said: O Arjuna, The Immortal Soul (Jivatma) in the body is an eternal part of mine and it is HE who draws the five senses and the sixth the mind that dwell in nature."
hrd-dese ’rjuna tishthati
yantrarudhani mayaya" (Bhagwat Gita: Chapter Eighteen verse 61)
"Sri Krishna said: O Arjuna, The Supreme God is situated in everyone’s heart, and is directing the wanderings of all living entities (as per their own Karmas), who are seated as on a machine, made of the material energy (the Nature)."
"samo ’ham sarva-bhutesu
na me dvesyo ’sti na priyah
ye bhajanti tu mam bhaktya
mayi te tesu chapy aham" (Bhagwat Gita: Chapter Nine verse 29)
"Sri Krishna said: O Arjuna, I am equally present in all beings; there is none hateful to me nor am I partial to anyone. I am equal to all. But whoever renders service unto Me with devotion is a friend of mine, is in Me, and I am also a friend to him."