Answer :
“Mending Wall” is about two farmers who were arguing over a wall and the writer does not seem to support the idea of the wall being created. “Any Human to Another” is a poem that stresses that humans are all connected to each other and that when one person feels oppression, the whole race of that person is greatly affected.
The Similarities are that, the two poems describe two arguing parties. In the two poems, there is division which is the wall and the discrimination.
I hope this helps, Regards.