Just a few thoughts about racism.
"Soon afterward he went on through cities and villages, proclaiming and bringing the good news of the kingdom of God. And the twelve were with him," - Luke 8:1 ESV
"Now the whole earth had one language and the same words... Then they said, 'Come, let us build ourselves a city and a tower with its top in the heavens, and let us make a name for ourselves, lest we be dispersed over the face of the whole earth.'... And the LORD said, 'Behold, they are one people, and they have all one language, and this is only the beginning of what they will do. And nothing that they propose to do will now be impossible for them. Come, let us go down and there confuse their language, so that they may not understand one another's speech.' So the LORD dispersed them from there over the face of all the earth, and they left off building the city. Therefore its name was called Babel, because there the LORD confused the language of all the earth. And from there the LORD dispersed them over the face of all the earth." - Genesis 11:1, 4, 6-9 ESV
God saw something about fallen men. They had a desire to make 'a name for themselves' and He knew that if He confused their languages that it would act as a breaking mechanism for their ambition. People would gravitate towards other people that understood them. In those language groups the desire to 'make a name for themselves' would continue. If Babel would have gone on unhindered humanity would have built a huge unstable structure that would eventually topple and kill the all or most of the people involved.
In contrast... Jesus went to all the villages and spoke to all the people he could reach. He didn't go to those that spoke his language only. He had good news and was not trying to make a name for himself or His group. Jesus sought to pass through walls without destroying culture.
Recently someone in a group brought up the question, 'What language do you think we will speak in Heaven? Will we have one language?
Of course I don't know that answer because the scriptures don't specifically say but I do see these passages.
"For I know their works and their thoughts: it shall come, that I will gather all nations and tongues; and they shall come, and see my glory." - Isaiah 66:18 KJV
"After this I beheld, and, lo, a great multitude, which no man could number, of all nations, and kindreds, and people, and tongues, stood before the throne, and before the Lamb, clothed with white robes, and palms in their hands;" - Revelation 7:9 KJV
I think we will have the opportunity to speak and understand all of them. I think God wants to make us larger not smaller.
Let go to every village we can and learn to communicate. Hatred only cuts us off from knowing and appreciating the beauty of what God has done. Having good new motivates us to go. Making a name for ourselves motivates isolation.