If you say so. I've been to hundreds of nightclubs and spent thousands of hours in them. Most people can't dance for shit.
Also if you look around in the video, no one really cares either. No one's even watching her at the venue. They're all ignoring her no different than if she was a dude dancing like that.
As for her channel, lots of people like dancing and watching people dance. I don't know why. My sister likes dancing and she watches dance videos like that on Youtube. She's not a lesbian, she just likes watching that crap. There are entire TV shows around dancing eg. So You Think You Can Dance.
It goes both ways as far as genders go. Have you ever been to a resort or on a cruise? They always have male and female dancers performing there, and the same you are saying is true of the male dancers - they are always tall, lithe, ripped, young, and reasonably handsome. Should they be ashamed as well? People like watching this shit, so there is a market for it.
I don't see why we are trying to make a point of mocking people who try to make their living off dancing. I think dancing is mostly stupid, but no more stupid than any other thing people spend their time doing. At least it's still an activity.
I have shit physical function due to problems I have with my body so I'm moderately impressed by anyone who can maintain that level of coordinated energy for any length of time.
I agree with the posts above - I think "gurl gamers" streaming videos of their tits while they blandly play video games is far more offensive.