I didn't. This "lost cause" phrase is being thrown around a lot. I never said that, but it's constantly attributed to me.
I suspect these people are responding to a telephone-game version of what they think I said.
What I have said is that people should not be shamed into staying where they were born. And, of course, that Strong Towns is the best bet that North America has.
I've been very consistent ont this for years, but people insist on warping my intentions.