The designer was sacked from fashion house Christian Dior after he was accused of making racist and anti-Semitic remarks during a drunken rant in Paris and while stylist Rachel has been friends with John for years, she was disappointed with his remarks.
She said: "It's a little insane and super-sad. Anti-Semitism, racism or any prejudice is not something I tolerate. I've fired clients because they were anti-Semitic, or anti-everything, except what they were. "I've known John Galliano and his boyfriend for years. I don't know enough about it to make a clear statement, but if it's true, it's tragic."
Rachel - who made her name as a stylist to the stars with clients including Nicole Richie, Kate Hudson and Demi Moore - also revealed she has always been desperate to work in fashion but is uncomfortable with the fame that comes with it.
She explained to The Hollywood Reporter magazine: "I worked 20-something hours a day, seven days a week. I was completely obsessed with fashion and spent all my money flying to Paris to go to couture because that was the dream. I crashed shows, stood in line for Marc Jacobs. Designers were my heroes and my celebrities. It hasn't really worn off.
"A stylist is a behind-the-scenes job. I'm never a star when I'm with a star - ever. Back then, I was very insecure about that. Even now, if you watch me on a red carpet, I'm physically uncomfortable. I can't strike a good pose to save my life. Fortunately and unfortunately, it's a part of brand-building. It's just part of my job."