You fail to understand that this isnt a battle of what's worse. You think sharecroppers were like " Oh we're technically free now so no need to fight for more rights." You think gay guys said " oh i cant have it much wose than i do now." Is that how gay marriage got legalized? No. It important to be grateful for what you have and also strive for better.
You're right. One of the principles I live by is Doug Stanhope's saying (paraphrased), "One's suck does not make my suck suck less".
The problem with your platform is that it either makes up problems or assumes from quickly glancing at falsified statistics that there are problems.
There are no problems. You are equal under the law to everyone else. What you see is how that plays out in a free society of multiple ethnicities and faiths, all with different grudges and behaviors. If you want to fix how blacks are being "treated", the first thing you need to do is take a good look at yourselves, something that groups like BLM have never done if not to spite others.