There’s a difference between a 6000k and 4500k light. The latter is still warmer without being yellow. It’s usually bellow 3500k that it starts to fuck up with colors. But, a 6500k or more light will also fuck up your wall colors and make the house look like a factory warehouse. It also makes people look sickly and unnatural, and it is known to trigger headaches and migraines. Also, people’s opinions can’t be incorrect, it’s their opinion. Let them have it.