Compare and contrast a functionalist and marxist perspective on the changing uk contemporary family structure

considering functioonalist and marxist perpsectives on changing family structures in the uk

what are the differences and similarlities or competeing ideals
what about social facts do these have an impact on the contemporary family structure if so how?
are the changes for the better or worst what do functionlaist and marxist think (better or worst) and why
is the traditional family unit still going strong?
Reasons for changes