Sighs. Oh, Jane.
Look-- Thomas Gallaudet did go to British for English, but professors disagreed with the sign language because they had their audist thinking and attitude against it. He had no choice so he traveled to find an another country for help. He did need a help! Gallaudet did tell Cleru that Deaf children need a help and know English. So, Clerc was only one who will to help unlike those another snobby professors. Therefore, Gallaudent now had two languages to help Deaf children.
You should realize that Alice was a late learner, due to her age, and never went to school. No, oralism will not work on her. Nothing did success anything on her. Well, at least, she was lucky to be taught at young age.