That’s the usual response from Vancouverites to newcomers who complain. It’s almost never:
"I will show you that it’s not shit"
"I’m sorry you feel that way. What can I do to change that."
The whole go-back-where-you-came-from attitude is a colonialist settler mentality that fails to recognize that the newcomers have a right to express dissatisfaction at how they are treated by others.
To be truthful most people get mad about having their city called a piece of shit because they feel like they are stuck there.