Bitcoin Cash and its predecessors lack the nodes and transaction confirmation security that Bitcoin provides. This is why institutional investors will always seek to store large sums of wealth in Bitcoin. Bitcoin Cash is a slower and less secure version of Litecoin.
That is incorrect. Litecoin is less secure having supported Segwit that breaks the legal use case by taking the signatures off the blockchain. The conjestion of the Bitcoin network makes it less secure and unreliable. Only Bitcoin Cash has the reliable and security. Litecoin and Bitcoin havensold out to Blockstream that is moving both coins from peer to peer to hub and spoke reintroducing the banks as middlemen.