I assume this is meant to be a question.
Bitcoin Core is a software. Without the bitcoins on the blockchain, the software would have no purpose or reason for existence. Nodes are essential to the proper functioning of the network because they validate all transactions and make sure that consensus rules are being followed when new blocks are added to the blockchain. They share and propagate transactions with their peers and add them to their mempools. Bitcoin wouldn't be decentralized if it wasn't for the thousands of volunteers who provide a free service - running their own nodes.