Defi and NFTs will not only be important elements in the cryptospace, I reckon Defi will be the main element that will serve as basic infrastructure for all digital items created in the cryptospace. This will include NFTs as mentioned and will also serve cryptocoins like Bitcoin, Ethereum, other altcoins and stablecoins. Defi can also serve casinos, DAOs and many other usecases.
I definitely agree with you regarding the statement that Defi is and probably will be an important element of the whole cryptospace. When the whole Defi Hype started i also did not really understand what this was all about but i start to use those Defi products more and more. I invested a little bit of money in a token that i can recompound regularly in order to increase my interest and therefore my overall profit and i am also having some fudns now at a farm where my assets generate passive income which is great. Sadly i can only invest small amounts in such products but people that have a lot of money available could really live from that passive income. Of course there is always also some risk involved.