I'm not sure how long it has been this way, but "innocent until proven guilty" isn't true in most of the country. If you are arrested, you will spend at least a day in jail if you can make bail. If not, you will spend weeks or months in jail prior to your first hearing. Often, that hearing will just be to setup another hearing, months down the line. So, you could be in jail a very long time without ever having a hearing at all, and without the state proving your guilt.
Even if you are rich and innocent and lucky, then you will spend a day in jail, and spend thousands on bail and lawyers, and if found innocent you will still have all of it on your record, lost all of that money, a day of your life, the abuse of the police officer and jailors, and there are many situations where answering "yes" to "have you ever been arrested" will disqualify you.
So, yeah, innocent until proven guilty is not a thing in the US. I fear that people might read this and think it's hyberbole, or that I'm part of some right-wing conspiracy theorist thing. It's not, I'm not. If you know a LEO, ask them. A LEO in the US is judge, jury and executioner, and they are quite happy for this to be the case. It means they get to do whatever they want. It is remarkable that Chauvin got convicted for murdering George Floyd on camera! That's why I think the BLM protests aren't quite right - should be CLM, civilians lives matter, because it's not about race, it's about giving low-to-average intelligence people absolute power over everyone around them.