> What are people upset about,

A wide array of policy issues related to the targeting and manner of execution of Trump’s mass deportation program, not the number of deportations.

Also, a number of specific instances of violence by the federal government during what is (at least notionally) the execution of immigration enforcement.

> why are they only upset in one city?

People are very clearly not “only upset in one city”

https://en.wikipedia.org/wiki/Protests_against_mass_deportat...

https://en.wikipedia.org/wiki/List_of_Ren%C3%A9e_Good_protes...

https://www.theguardian.com/us-news/2026/jan/24/protests-ale...