Let me play devil's advocate.
Right now the suburbs use DSM proper for their entertainment needs, cultural attractions, etc and those users pay no property tax to DSM as they live in other communities. Those other communities, because they have greenfields, can put in zoning regulations that basically make it so all cheap housing has to go into DSM and their smaller lots sizes, less restrictive storm water code, etc. In essence, the same cities that use DSM for (almost) free can pretty much force DSM to take on the brunt of the affordable housing issue. It's not fair or equitable.
If DSM enacts tougher standards you're probably going to get some of the people who want to live in closer-in neighborhoods but are scared of making the investment because of the low-income housing myths, so they move to Waukee, for example. You may see more high-income people move in and at the same time go on the offensive towards the same cities that are forcing low income residents into DSM. Until West Des Moines/Ankeny/Waukee lower their standards for development it's unfair to criticize Des Moines.
All of the people in this thread should be equally (if not more) upset at the suburbs own zoning which all-but-eliminates low-income housing in those jurisdictions.