American opposition to the convention stems primarily from political and religious conservatives. For example, The Heritage Foundation considers that "a civil society in which moral authority is exercised by religious congregations, family, and other private associations is fundamental to the American order"
They're in a job where they often are the first to hear significant public info that will affect the markets. This lets them make stock deals to their benefit before anyone else.
If they're being scummy, they use info that isn't public.
Progressives in the DNC are pushing for this to be reformed, so that's the best path for change.
The media sells the idea the world is on fire. By a lot of measures, humanity is the best it's ever been:
Things do seem bad, things do need fixing. My advice is to pick one singular part of the world you want to improve and figure out how to fix it. Something like abolishing prison labor or environmentalism. It needs to be something you can make a noticeable dent in, where you can see your own contribution to the effort.
Don't change tack every time something new like Isreal-Hamas or the scuffle at the US-Mexico border happens. You picked that one thing to fix, remember? And unless you plan on going down to the border with a gun, how do you plan on making a real difference? If you can't make a difference, why let it bother you?
If you think it's really that simple, you need to pay more attention to politics