I could care less about fashion for the most part, but my bosses do pay some attention to it and enjoy discussing the fashion of certain famous woman.
And they both *love* Melania, even Katie who was in the Hilary camp. Louise is probably still bitching that they didn't show what Melania was wearing the day Trump visited the White House on the news.
This isn't going to have any effect on the brands of High Fashion, since the vast majority of woman who care what the first lady wears can't afford High Fashion brands anyway and are already buying clothes off the rack. The woman who can (and do) wear High Fashion brands are still going to wear those brands because they can and because it's still a status symbol regardless of what the hell Melania wears.
However, the politics of what the Trump ladies (Ivanka gets a lot of credit on this as well) wear *is* very effective and will give a real boost to sales of those clothing lines. If they wore High Fashion, it wouldn't affect anything, but buy wearing "off the rack" it will boost clothing sales.
Somebody just wants an excuse to bitch and has made up a BS reason to do so.