This one might need explanation. This old folk song had different verses people would sing, so there were basically different versions. A popular set was:
She'll be comin' around th mountain, when she comes
She'll be comin' around th mountain, when she comes
She'll be comin' around th mountain
She'll be comin' around th mountain
She'll be comin' around th mountain, when she comes
She'll be drivin' six white horses, when she comes
She'll be drivin' six white horses, when she comes
She'll be drivin' six white horses
She'll be drivin' six white horses
She'll be drivin' six white horses, when she comes
O, we'll all go out an' meet 'er, when she comes
O, we'll all go out an' meet 'er, when she comes
O, we'll all go out an' meet 'er
O, we'll all go out an' meet 'er
O, we'll all go out an' meet 'er, when she comes
O, we'll kill the old red rooster, when she comes
O, we'll kill the old red rooster, when she comes
O, we'll kill the old red rooster
O, we'll kill the old red rooster
O, we'll kill the old red rooster, when she comes
And, we'll all have chicken an' dumplins, when she comes
And, we'll all have chicken an' dumplins, when she comes
And, we'll all have chicken an' dumplins
And, we'll all have chicken an' dumplins
And, we'll all have chicken an' dumplins, when she comes
Like a lot of songs for kids, people often added a callback response at the end of every line (in this case, after each time it says "when she comes"). The one for the verse about killing the old red rooster was "whack whack whack."
That's not the message I took away from what he said. What I got is that people should have diverse role models because if everyone is just like you, you don't learn empathy. He had someone who would correct him when he was wrong in a kind way, and that person happened to be gay. That experience helped him learn empathy and kindness.
As a straight white guy, I also feel that I've benefited from getting to know queer folk on a personal level - that that experience helped me understand and appreciate diversity, even for people from groups that I haven't yet gotten to know personally. I get to know someone who's, say, trans, and get at least a little exposure to what their experience of life is and how it's differed from mine. It makes me work that empathy muscle, so it's more developed when I met the next person whose experience is different from mine.
That doesn't mean that those people have some responsibility for educating me or teaching me anything. It just means that my exposure to people from different walks of life is useful for my own personal growth.