What is the actual complaint they have about ICE? Is it the immigration policy, the immigration court system? individual agents/employees? Doesn't every count

What is the actual complaint they have about ICE? Is it the immigration policy, the immigration court system? individual agents/employees? Doesn't every country have a counterpart to ICE that handles immigration rules? Are there any countries that allow people to come and go without identifying themselves and having permission? How is requiring identification and a visa (authorization) human rights abuse? If that's the standard for human rights abuse, then how can we own/lease/operate a car, have a bank account, rent an apartment, have an email account, access the internet, and so on? Isn't identification and permission justified merely for the sake of bureaucracy? How else would you be able to keep an email inbox and go back to it without someone saying its you, and/or the mail being lost? Maybe immigration policies could be improved, what specifically is it that could be done better?