If you don't want your mail shared with third parties you just have to encrypt your email and then it doesn't matter who your provider is. There's a difference

If you don't want your mail shared with third parties you just have to encrypt your email and then it doesn't matter who your provider is. There's a difference between "don't want their mail read" and "someone will be able to read my emails if there's a court order and they are interested in the content of my specific inbox".