Notable examples, and examples which have resulted in international solidarity movements, is how the occupation of Palestine, the suppression of BLM protests, and the suppression of anti-Apartheid protests and anti-Vietnam War protests all used the same technologies and training tactics. Police in the US and the IDF often train together. The colonization of Ireland famously was the first prototype for the colonization the British then conducted around the globe, including in Palestine.
The same Eugenics and systemic medical violence imposed upon people with birth abnormalities also was utilized to force sterilize Black people was also used to force sterilize Ethiopian Jewish refugees entering israel was also used to force sterilize trans people in Europe.
The ideological fear-mongering and phantasms that stirred up antisemitism leading up to the holocaust is the same kind of moral panic fear-mongering conspiracy bullshit that is being deployed around "Gender Ideology" around the globe now.
The same ICE/DHS state machine that rounds up undocumented latinx immigrants (or people perceived to be undocumented immigrants because they are latine) and puts them in concentration camps on the border before eventually deporting them..... well... it's only not deployed against you so long as you continue to be considered a Citizen (if you are even currently considered a Citizen and not just a Legal Immigrant). But it has happened in history, and has been proposed by some politicians again recently, to end Birthright Citizenship and to even revoke citizenship from certain classes of people. To decide somewhere you have never been is your home country and to deport you.
The machine that arrests Black youth and incarcerates them could be deployed against anyone who someone in power decides should also be considered inherently a criminal. The machine that renders people homeless and struggling on the street could always be anyone.
And even if you don't always think about it... there is an inherent threat that comes with all of this... you see it happen to other people and some part of you understands that that could be you if you don't stay in line and do as you're told to some extent. You see it happen to someone like you and you know that could be you. You see it happen to someone unlike you and you feel grateful that it's not you... because it could be you. It affects your behavior, limits your options, renders you Not Free because the violence actively imposed on others is an Example of what happens to people who are rendered inhuman, rendered a Threat.
You cannot be free in a country with a mass incarceration system systemically targeting certain demographics. You are simply temporarily not a member of the targeted demographic... yet... or... maybe you already are... and so you know, that you are not free.