Immigration to these shores isn’t new, and neither is segregation and isolation. There are Jewish communities, Catholic communities, Irish communities, Chinese communities etc. Their parial integration has taken many many decades, but things like St. Particks Day, and the Chinese New Year celebrations are enjoyed by everyone.
Part of the problem with our Asian communities is the WE feel left out. There isn’t much communal activity that we (if we want to) can join in with. They seem to prefer it that way. Eid and Diwali have really caught on with us. Perhaps it just needs a long time