Holy Cow. Quote from the comments:
2-That there are people saying and documenting that the USA has not being an independent country for a long while, and that the legal status of the citizens is that of slaves.
What this brings to mind is Goodwin's Law:
Aside from the fact that there are numerous characteristics that distinguish even the average working class single mom from a slave, this is a truly insulting comparison.
So first, how different? There are lots of social specifics: slaves do not get to chose spouses, and marriage in the church or state of your choice was unavailable. Slaves could not chose where they live, and what they ate. Legally, slaves were property and could not own property (such as a car). Slaves could not enter into a contract, however beneficial or not it is. Slaves did own the fruits of their labor.
And, today, whether you chose to do so or not, whether you believe it makes a difference or not, adult citizens in the US can vote. And those votes can make a difference. We only think about the president, and maybe the senate. But there are lots of local elections. There are school boards that decide whether "alternatives" to evolution get taught, whether high school sports happen, whether art and music classes are available. There may be problems. It may not work everywhere. But I have seen it work enough in places I have lived to know that it can work. If you want it to.
These are the ways in which adult citizens of the US differ from slaves.
But this is not why the comparison bothers me.
It bothers me because such a comparison at its heart is insulting to those who were slaves. Who did not have the rights we have now, even if you think those rights are a sham. The men and women whose children were taken from them, who did not get to practice the religion they were brought up in, whose ability and right to escape and abuser was limited if available at all.
Again, I am not saying that things are perfect, that problems don't exist. I am sure that if you search the internet you can find, in the US or in Europe examples of situations where these things do not work for the "free citizens", where women are abused, and children taken (wrongfully) from their parents. But, they are exceptions, and you had to search for them. It is not the experience of most Americans, who own a car, a phone, the clothes on their backs. Who have the option to send their kids to school. To pick the trade they learn.
Slavery in the US was shameful. The case for reparations needs to be discussed and considered. It is not sufficient to say "those weren't my ancestors". You need to read this article [The Case for Reparations Ta-Nehisi Coates]. You need to read this book [The Warmth of Other Suns, Isabel Wilkerson]. But most of all, when you talk about what is wrong in the US today, for the average citizen, you cannot call it slavery. Get yourself a different word. It is shameful to fail to acknowledge what slavery really was.