When multiculturalism works in this harmonious way, it leads to a stronger, more vibrant society. It promotes tolerance, broadens perspectives, and drives innovation through diverse thought. However, if the legacy and values of the host country are not appreciated or accepted, what results is not multiculturalism but rather a disjointed society where unity is undermined by division. 

In conclusion, multiculturalism is indeed good for a country when it involves mutual respect and appreciation for both the incoming and existing culture legacies. Without this balance, the very idea of multiculturalism loses its purpose and potential. 

CC: @KobieThatcher, would be great if you have any thoughts to riches my post regardless.