It’s not good. It can only assume that anyone who would use London as a name has never been there, or has only seen the incredibly wealthy areas and assumes they represent the whole city. London, much as I love it, is rampant with economic inequality and there are thousands of people living in poverty and squalor or completely unhoused. It’s silly to name your child after a place like that. I think the same of Paris, when used in reference to the city. They might sound glamorous, but they’re not.