It is absolutely wrong to say "從此知道了餘傑這個人就是這樣 一個喪失了人類基本同情與道義的人. 他的觀點不必再深究了". Even a criminal can be right sometimes. If you refuse to listen to a person just because he said something wrong, you probably cannot listen to anyone in this world.
A enemy 's enemy may not be your friend.
Based on science, a normal childhood is good for a person's mental health. So 棄兒 could have a higher probability of being 變態. That is why parents should not abondon their children. Although not all 棄兒 are 變態, 孔慶東 sounds like a 變態 when he spoke a lot dirty words on TV.