If a presenter uses a hostile tone of voice, what effect might this tone have on audience members?

If a presenter uses a hostile tone of voice, This effect won't be good on the audience members. This tone would have a really bad effect on the audience members. A presenter using a hostile (unfriendly) tone of voice will not be liked enough by the audience. So, It is better to use rather a friendly tone of voice.

samuel gompers was an extremely important person in the american labor movement, being him an employee all his life he devoted himself to fight for the rights of his pairs, he believed they all had the right to have better thing and that they all were working for them but the factory workers were greedy, ambitions and socialist people for him who he didn't have a good concept of.

he gave so many speeches and led so many strikes and protest to fight for equality which he considered employers didn't want to accept, so he had an absolutely negative opinion of them.