What Would You Do: Sales clerk refuses to sell clothes to transgender woman

I was flicking around Youtube, as you do, when I found this.

https://www.youtube.com/watch?v=XYBx__4iAUw

I was surprised by the amont of GG's standing up for the transgender lady. It's old, 2017. Don't read the recent comments though. Some of the people are going on about the stores clerk, needing to be sacked. They dont seem to realize she is an actor, like the trans lady.

Does stuff like this happen for real?