Grandmother Sara Folger sits in her single-wide trailer, the Rockies looming, and remembers when Bozeman was full of "back-to-the-land hippies, college students, cowboys and ski bums." Now it's diggers, cones, and out-of-state plates. Since the pandemic, Bozeman's population has grown about 20% - a huge jump for a town under 50,000 in 2019. The influx was driven by conservatives fleeing coastal Covid restrictions, drawn by Montana's lack of sales, luxury, and inheritance taxes. Home values jumped 40% in two years, says realtor Mark Corner. Rent for a one-bedroom hit $2,000 a month - out of reach for locals on single incomes. A rent strike by two mobile home parks epitomized the clash between haves and have-nots. Mayor Joey Morrison, elected at 28 on an affordable housing platform, saw his own rent triple from $333 to $900. "Suddenly every coffee shop is full of people coding," he says. The "Yellowstone Effect" - the Kevin Costner show - also drew transplants, says economist Jeff Michael. The airport sees 80-100 private jets daily, ferrying the rich to the Yellowstone Club, where Justin Timberlake and Tom Brady own piles. Residents like Ben Moore, 35, can't move their 25-year-old mobile homes: "It will disintegrate." Young activists like state rep Katie Fire Thunder, 25, and congressional candidate Sam Forstag, 31, are fighting back. "This is not how Montana works," Fire Thunder says. At a swanky downtown eatery, a Colorado dad noted $170 whiskey pours, and a sales rep gave a wry answer.