If you refer to the behaviour of a group of people as degeneracy, you mean that you think it is shocking, immoral, or disgusting.
例句
...the moral degeneracy of society.社会的道德堕落
英英词典释义
Noun
1. the state of being degenerate in mental or moral qualities
2. moral perversion; impairment of virtue and moral principles;
"the luxury and corruption among the upper classes""moral degeneracy followed intellectual degeneration""its brothels; its opium parlors; its depravity"