That might be the sole legal priciple, but it's not the sole reason such laws are passed. Plus I don't think it invalidates the GPs concern. Any law that gives

That might be the sole legal priciple, but it's not the sole reason such laws are passed. Plus I don't think it invalidates the GPs concern. Any law that gives people an advantage or disadvantage because of their race is racist. Some feel the benefits are worth it, but explicitly racist laws are anathema to many.