Everytime I look at small problems or big global problems, if you follow the money trail, it all leads to some billionaire who is either working towards increasing their wealth or protecting their wealth from decreasing.
Everything from politics, climate change, workers rights, democratic government, technology, land rights, human rights can all be rendered down to people fighting another group of people who defend the rights of a billionaire to keep their wealth or to expand their control.
If humanity got rid of or outlawed the notion of any one individual owning far too much money than they could ever possibly spend in a lifetime, we could free up so much wealth and energy to do other things like save ourselves from climate change.
The “loophole” is how capitalism works. Here’s my super simple definition of capitalism. Capitalism just distributes resources based on capital. The problem is that capital is a resource that needs to get distributed. Sure a doctor and fast food worker are both being paid for their time. But not the hospital owner, not the restaurant owner. They’re being paid for their capital, they had the capital to own this business, so they own the capital it generates.
I dont think Im really disagreeing with you though, taxing the owner class on a much more aggressive sliding scale of wealth definitely needs to happen, but we need more public sector workers for all that taxed income to be put to use for. The system is flawed and needs changing, just remember that the work still needs to be done regardless of the solution.