Unfortunately what this guy is saying is very true. It's economics. Your investment in your home is ruined. When trash starts moving in the quality people move out. If they panic and can't sell they rent to more trash. The Titanic is going down and you better get on the lifeboat. It's a self-fulfilling prophecy. Soon the neighborhood is destroyed and you have a slum.
When trash moves into your neighborhood they bring their trash with them. They bring drugs, crime, etc.
The interviewer probably lives far out in the suburbs where the trash can't afford to rent or buy. That's why he can accuse the guy of racism. He can pontificate from afar.