The only Defi project in your list is YFI. Others are not DeFi. But is a token that created where the value is pegged with BTC price (1:1). The main goal is to facilitated etherum community to swap their ETH/ERC20 token they owned via the MEW/Metamask wallet they use. Without having to bother sending their ETH/ERC20 tokens to the exchange like conventional transactions.