"We need a new renaissance" is a dog whistle for "we need a white culture (Rome was a good example) to dominate and destroy the societies adjacent to it again, so that while they are recuperating, rebuilding and repopulating, we will assert our white cultural dominance and leverage that to impose our ideals and religion into every facet of other cultures and then call it a renaissance".

Notice how you never read about the Islamic renaissance or anything from India, Asia or Africa, or even South American native cultures when "renaissance" is mentioned?