degenerate: "having lost the physical, mental, or moral qualities considered normal and desirable; showing evidence of decline."

if you want to marry a cat, you have lost all of the qualities considered 'normal' in all 3 of those categories. also you're wrong.. it hurts the human race. having people on the planet who want to marry animals hurts the human race. allowing it to be considered 'normal' would hurt the human race. it indirectly hurts literally everyone. someone 500 years from now, someone 50000 years from now, would be hurt by us making it socially acceptable to literally marry cats. also your ancestors would probably hurt from how hard they rolled in their graves