Economist Peter Schiff expresses his views on social media platforms, highlighting how ETFs damage the core decentralized principles of Bitcoin. He contends that Bitcoin, originally designed to operate in a decentralized manner with peer-to-peer transactions, would lose its essence when ETF mechanisms are introduced. Specifically, Bitcoin's ability to freely transfer assets through a decentralized network is compromised by ETFs. Firstly, Bitcoin should ideally be easily tradable without being controlled by specific entities, but ETF structures limit this freedom, making asset transfers more vulnerable to external interference or confiscation. Secondly, as a fundamental function of money, Bitcoin should serve as a means of payment, but the existence of ETFs might erode this capability. Moreover, one of Bitcoin's key features is its convenience for cross-border transfers, and the introduction of ETFs could jeopardize this advantage. Lastly, control over private keys is crucial for Bitcoin holders, and ETF structures may lead to users losing full control over their private keys, thereby affecting the security and autonomy of their funds. Consequently, Schiff argues that ETFs, to some extent, go against the original purpose of Bitcoin as a decentralized currency, impacting its intrinsic value and functionality.