I read the articles you posted, did you? Some of them go into detail as to how Obama enacted policy for clean energy and affordable healthcare. Most of them are just editorials. They represent the opinions of the authors and don't really site specific legislation. With the exception of the nonsensical libertarian piece, most of them are just complaining that Obama campaigned from the left and governed from the center. In that, I agree with them.
Do you know how many people live in California, Illinois, and New York? Do you know how many electoral votes those states have? Can you do math? If you did your homework, you could avoid looking so foolish. Here is a map showing electoral power per citizen, based on population and state electoral vote numbers.
You will note that California, Illinois, and New York have some of the lowest voting power per citizen in the nation. This is intentional. Just like how they gerrymander districts and engage in voter suppression, the Republicans are constantly subverting the will of the majority to protect their billionaire base from the masses. Hillary Clinton won by 3 million votes, yet Trump is given the Presidency. You have to do some real mental gymnastics to come to the conclusion that there's nothing wrong with that.
Being black does not automatically give you a free pass for supporting a racist scumbag like Trump. Historically there have always been cowardly boot-lickers that betray their own to save themselves. I'm Irish/Cherokee descended. My ancestors were victims of slavery, colonialism, and genocide too. I choose to honor them by resisting and opposing the racist and oppressive policies of this administration. I would encourage you to look inward and do likewise. If you think being comfortably middle-class is gonna protect you from Republican policy, you are gravely mistaken. Sucking the wealth out of the middle class, and funneling it to their wealthy campaign contributors is number one on their agenda. Maintaining white supremacy is also big on their agenda. Save your dollars, and lose your wealth to inflation. Invest in the market, and lose your wealth when it crashes. Get a decent job, and lose it all when it gets outsourced overseas. Even if you are clever enough to beat the banksters, you are one traffic stop away from a kkk affiliated police officer deciding that a black man is obviously a drug-dealer if his car is that nice. The bullets in the officers gun don't care if you have almost made a million dollars, and the racist pig holding the gun only sees the color of your skin.