Lifting the 21 million limit will happen if the miners see it as being more profitable than the alternative. Oh, just by a little, and there will be plenty of rented experts to explain that the change is actually good for bitcoin... (But we have been through this discussion before...)
Every government wants to have a strong and stable currency; but some of them end up printing lots of money to cover their expenses, even though that hurts the currency. When the US government created the dollar, it promised to back each bill in gold or siver; but it eventually reneged on that promise. I don't see why the promises of the bitcoin protocol -- that were made by humans, and depend on humans honoring them -- will have a different fate.
So you don't see how force is different from persuasion? The monopoly government's can mandate use of their scrip. We have neither their ability to coerce nor their perceived legitimacy. If the 21 M cap is lifted, the market will reject bitcoin and I will be among the first to divest myself entirely. The markets regulate better than States do.






