People seem to make proposals to increase government power and control while thinking optimistically of how the best possible government could use that power, rather than thinking about how a much worse government could abuse that power.

Even when the current government is one you like, you should always think carefully about agreeing to give them more power, and consider what happens when (not if) that government becomes one that is hostile towards you. If an idea to centralize more power and control suddenly sounds terrible under those circumstances, then it was terrible to begin with. If an idea still sounds good even under those circumstances, and has enough safeguards in place to make it incredibly hard to abuse, then it might be a good idea.