My parents left Brooklyn more than 65 years ago to own a business, a house and raise their children in a Connecticut city.
They did NOT move to the suburbs.
The poster writing about Cleveland is not writing about moving to a suburb of the city with the ghetto. Waterbury, Rochester, etc. are not suburbs.
These are all cities that have had orthodox communities for decades, dating back to the 1800s. Young families are encouraged to repopulate these communities and make use of the infrastructure that exists and was paid for by earlier generations.
My parents raised their children in Connecticut, we raised our children and they are raising their grandchildren. Day schools, yeshivos, mikvaos, cemeteries and shuls exist. The buildings are long paid for. It is much better to repopulate the neighborhoods that suffered white flight in the 1960s and 70s and the decreasing birth rate among non-frum American Jews than turn these buildings into ‘Black’ churches or charter schools.
Rav Miller’s words were very specific and they applied to direct suburbs of the large city frum ghetto, they should not be extended to cities that have had long standing orthodox communities and institutions.