I think the "nothing I can do will change anything" is actually a predominant theme that's emerged over the past decade. I don't know if you've watched any of Adam Curtis' documentaries, but his documentary HyperNormalisation explores this in great detail (most of this documentaries have a similar theme I've found).
Edit: Apologies, I think I mean his documentary: Can't Get You Out of My Head. Essentially it asserts that all revolutions fail, because the people who attempt to overthrow simply become the new guard.
When I was a lot younger I built a very big and complex platform with Phoenix. Although it was a technical marvel, it's one of my big regrets as far as the tech stack I went with, because it's now useless for my actual work now a decade later.
I don't know if this is paranoia, but one fear I have for high-tech Chinese products is that if a world war were to start with China, that they'd have the ability to remotely disable these kinds of products.
You also can't predict when you might need to sell you stake, so that's ultimately the value of hedging. If you're forced to sell in 5-10 years, then hedging would be valuable.
Hard question to answer without understanding your circumstances.
Ultimately the point of hedging is to diversify. So the degree you should hedge is relative to the degree with which you have exposure to your home currency. So for example, if you already own a home in that country + you already own lots of shares in that home currency, then hedging might be less important.
The recommendation I've seen is around 25% of your portfolio in hedged global equities, assuming you have another 25-30% in non-hedged global equities.
I could be misunderstanding this, but you know that you can buy ETFs that are currency hedged?
Taking Vanguard for example, VGS is global equities, but VGAD is global equities that are AUD-hedged (my home country).
The only downside is that you pay more in fees (and they're less tax efficient). People generally don't bother with it though, because on a long enough time-line currencies usually revert to their long-term average, so if you're holding for retirement there's generally little point.
Edit: Apologies, I think I mean his documentary: Can't Get You Out of My Head. Essentially it asserts that all revolutions fail, because the people who attempt to overthrow simply become the new guard.