Explain how Tom Robinson and Boo Radley are considered the "mockingbirds" in this novel.

They are both in their way different from everybody else, which makes them an easy target for mockery. However, as Atticus says, you must never shoot a mocking bird.

Tom and Boo are both Mockingbirds because they are "attacked" and yet are innocent. Miss Maudies directive to Scout earlier in the novel to not shoot Mockingbirds is to help Scout learn to protect the innocent rather than attack them. While they try to protect Tom, society doesn't allow his innocence and therefore they lose the trial. The novel does allow the protection of Boo by having Tate offer the excuse that Ewell fell on his knife. This protects Boo rather then letting him be attacked by society via a trial to prove his intent.

they do good for humanity, yet humanity attacks them with false remarks.

i also kinda need help on this