I'll bite.Income inequality is a real issue.
It's a "real issue" like climate change is a real issue. There is no question that the climate changes. Whether man contributes and to what extent, is the real question. The same is true with income inequality... it happens naturally as the result of free market capitalist action.
Imagine our free market economy as a marathon race. You have some runners who are seasoned veterans in wealth acquisition... they know how to do it well... You have some runners who are aspiring to be great... And you have some runners who are proverbial couch potatoes. The veterans represent the wealthy, the 'aspiring to be greats' represent the middle class and the couch potatoes are the poor. This marathon lasts for months but each day, the results are tabulated and we can see where everyone in the marathon is at. Okay, after the first day or two, it becomes clear the veterans are leading the pack, the aspiring are next and the couch potatoes are lagging behind. Each day that passes, the veterans are going to be further ahead, the gap between themselves and the aspiring is growing but the gap between the aspiring and the couch potatoes is growing even more.
This isn't a problem, it is a result of a natural phenomenon. There will never be a time in the marathon where the couch potatoes are gaining ground on the veterans. The inequality will continue to widen throughout the marathon and this is a natural consequence. And the same thing applies to wealth inequality... it is a natural consequence of free market capitalism. There will always be people who make more money than others because they have the tools, the experience, the know-how... they are the seasoned veterans. There will always be the couch potatoes lagging further and further behind because they lack the motivation, they lack the tools and know-how.
Your idea for a solution is to somehow hobble the veterans so they cannot gain ground and hopefully, the couch potatoes can catch up... but you see, that is a stupid failure of an idea. It completely destroys the concept and purpose of the marathon to do such a thing. A MUCH better idea and approach would be to motivate the couch potatoes, inspire them, teach them and train them up to be "aspiring" and at the same time, help the "aspiring" to be greater... to learn the tools of the veterans... encourage them on... promote greatness. You won't ever completely resolve the wealth inequality issue but you can mitigate it to a certain degree by encouraging success instead of punishing it.
Climate change is a real issue, the science is settled, all world governments agree, action is being taken.
Income inequality has become a real issue since the 70's and the rise of neoliberalism. A government that stands by and allows resources to be unused is pathetic. The private sector cannot function without the federal government providing liability free dollars through deficit spending. Your analogy about the free market has nothing to do with my income inequality point, if anything, it shows that the government needs to step in and make sure the poor/middle class have dollars to spend. Your analogy fails because, unfortunately, most new income is getting taken in by the wealthiest, hurting our economy because the wealthy tend to simply save. Hobble the veterans? What? The wealthy have been taking in income CONSTANTLY for decades, no stagnation, and businesses are booming. Labor has been shafted, for decades. It literally can't go on like this, especially with dumbasses believing we can go on without any new liability free dollars. Dumbasses who want to run a "surplus" and take more from the poor/middle class while not adding any new liability free dollars, forcing the private sector to turn to debt. Yeah, it's nice to use ideological nonsense to justify the shrinking middle class and numbers in poverty/unemployed. Unfortunately, the real world is different. You see, we have the people in government that follow NAIRU, you know, making sure unemployment doesn't get to low. Let's not forget the decades of stagnant wages.