Yes, yes, Gizella, people "fought" to uphold the principles...of the rule of law."

The 1923 Chinese Immigration Act meant that unless you were a foreign student or diplomat, you had no hope of immigrating to Canada. THAT was the new law.  It was a law that replaced the other, earlier law that imposed a $500 head tax on any Chinese who wanted to call Canada home. Seemed to work.  Chinese immigration back then plummeted--for a while. Terrible, eh?
Or...maybe not. 

Not if you're a 20-something in 2017 wishing and hoping you could buy an "affordable" house and looking for somebody to blame because you can't.  Is that 15% foreign ownership tax imposed last summer by the BC government so...radical? So new?  More important question: Is it working? What to try next?  Hey...let's look up that 1923 law again (which we now, more pointedly call the Chinese Exclusion law.)  Hmmm...