Why did/do people think Disco sucks?

I’ve always wondered why people think this. Jesse Thorn interviewed Nile Rodgers of Chic on The Sound Of Young America and brought this up:

Disco, at its height in 1978, 1979, was getting it from two sides. One side was this return to Rock N’ Roll that spawned “Disco Sucks!”…the disco sucks movement, that was I think we can say now, 30 years later, that was informed partly by people’s aesthetic preferences, but also partly by a combination of racism and homophobia…the other way that disco was getting it was from people who saw themselves as defenders of blackness who did not like the way disco essentially de-racinated, took the race out of dance music…there are these two forces pushing against disco.