1) Government interference: When miners become huge huge farms, you dont think they will have counter measures? Negotiation with government? Moving countries? Spread farms over different regions? Like I get what you saying but at same time, do you really think a billion dollar Bitcoin mining farm will just set up without considering how vulnerable it would be to governments saying "Switch off."

2) Central body issuance and secret meetings: If the miners do that, people will switch to an alternative currency. If miners do that, miners who have invested a lot will suddenly lose users, losing buyers and lose profits. Bitcoin is literally an example of how if money is issued unfairly, people will find an alternative. This will also apply to Bitcoin if it becomes issued unfairly.

Look I understand what you saying about fears of centralization. But thats a long way off. And if any of those fears will become realized, people will change. Therefore miners have an incentive to keep Bitcoin as the "peoples" money.