Personally, I do not believe that all people are "emotional like us." At least, I do not believe that the same things do not make all people feel the same emotions. I do believe that all people have the same emotions that they can feel, but I do not believe that the same stimuli make us feel these emotions.
However, Kirkup argues that we do share the same emotions. He says that all people in all lands have a "common life" that everyone can understand. He says that people's hands all show a "labour not different from our own." He says that all people have strength that can be "won by love."
None of these is actually saying "all people have the same emotions," but I think that together these lines imply that we do. He is suggesting that people in all places are essentially the same -- that they are affected by their work and their emotions in the same way. This is why they all have a common life.