How can I paraphrase this sentence to use "shame"?
Native speaker’s answer
Rebecca
If you want to shorten the sentence, you can say "you should all be ashamed" or "shameful," although the feeling that is given off by these phrases is slightly different. Ellen has said this sentence in a joking way, so it's best to keep it as is to best express it's intended meaning. Ex: You should be ashamed of yourselves. Ex: You should all be ashamed. Ex: Shameful.