The poem "I Too" by Langston Hughes discusses how America is still a segregated society and African-Americans are still treated poorly. He uses the metaphor of being sent to the kitchen to eat when company comes to symbolize how African-Americans are still not seen as equal with whites. All of the information discussed in this poem relates to how throughout American history (up until this time) African-Americans are not seen as equal citizens. This was especially true during the era of slavery, as slaves had no legal rights.
In the poem "I Too" his words are not intended too be harsh or critical. Rather, he is pointing out how unfair American society is for African-Americans.