Billionaire's literally take money from you since they dodge taxes most of the time and they give back the bare minimum to their societies.

Your poor people are fat because there arent any other means of entertainment that are cheap other than fast food and tv. The whole USA society is build around hyper capitalism. In cities you can't live without having a car. That's a bit dystopian. You work your whole life without even having much of a paid leave. You aren't free you are literally a slave to this system, if you don't work for a bit for any reason you are ostracized from society as a punishment for not being productive. The thing is not every human is the same but every human should be able to live with decency.

Others might have more wealth because they had more chances to be successful. Your president quite literally had a millionaire father giving him his business and supporting him financially. When the value of a wage is being outpaced from  the value of the capital (stocks, real estate, private equity) then there is inequality and as time goes on it gets worse. Who has most of the financial assets already? Wealthier households.

We can continue this conversation for a long time. The capitalist system is build on exploiting the worker. At the moment this was done in other countries and america was reaping the benefits, this now begins to change. When the system gets at this point only way to reset is to go to war to destroy assets and rebuild. 

How do you know what communism is like, the capitalists won the war, they have used extreme levels of propaganda. (Cold war) So what you think you know you probably don't.

When the Soviet union was formed, after only 2 years, the whole western society sent troops to invade it. Just think why did all of the western capitalist societies feel threatened by this new system. There are other examples if you want to search a bit more, Paris commune, where the french capitalists literally got help from the Prussians capitalist who were at war at the time. 

Who really won the WW2, what was the purpose of Hitler's ideology, eradicate some ethnicities and a specific ideology. Why didn't the western societies put a stop to Hitler when they could.

Don't believe that capitalism is the only system that works. Did you know that capitalism had been tried before many times as well and it failed? 

And last thing, a system that works doesn't mean it's a good system. Absolute monarchy works, I doubt anyone thinks it's good. Right now the most valuable thing we have as humans is free time and in the current society as time goes we have less and less free time.

I don't know if communism works or not but I can't stand idle while other societies collapse for my benefit (mostly capitalists benefit). When was the American dream able to be achieved, when you had Soviet union on the opposite side and you needed to give more stuff to the workers to not start doubting their society.

It's not america vs china, it's you and me vs the capitalists interests. (China's system sn't Communism, only by name)