That young couple still depends on their parents for everything.
Literal
That young-couple [topic-は] even-now parents [to-に] piggyback [and-に] carry [copula-だ].
おんぶに抱っこ is an idiom meaning 'completely dependent, having everything done for you' — literally 'piggyback and being carried in arms.' 若夫婦 'young married couple.' 今でも 'even now' emphasizes that this dependence hasn't ended as expected.