Well, the network effect for bitcoin is pretty strong. Adoption is increasing at a faster rate then the internet did. We are going to offer bitcoin lightning payments soon at my business. Instant settlement for about 3 cents as opposed to 2-3% for typical credit card transactions. Also, bitcoin is a global public network. Venmo is only in the US.
Can you name another technology that allows you to send value to anyone, anywhere in the world instantly for a few pennies? Also, it needs to be something outside of central control to be similar.
NFTs can be anything. You have very limited knowledge in this area.
AVVE a ponzi? You are out of your depth and have no idea what you are talking about.