No borders simply assumes that everyone in the aid gets along. This is not true, and no borders is an extremely western view that assumes everyone in the world is like the.

Do you expect certain Asian countries where English is less common to be remove their borders and accept anyone even though communication is impossible. How do you expect governments to look after and protect these people and protect these people.

Commiting a vicious crime could easily be avoided by moving somewhere new. Since there is no border stopping you.

Borders and stricter immigration help integrate people who want to live and adapt to a country and culture.

No borders is just idealistic and ignores a lot countries cultural history that you are asking them to erase under the guise of no borders.