Regarding high housing prices, President Biden should simply point to Wall Street as the fall guy for puchasing starter homes and pricing ordinary people out of the market, and by extension the Republican Party which has traditionally been an ally of Wall Street, and run on presenting policies that would counter that. That would make sense to most Amercans. The truth is probably more complicated than that, but I would rather let Repubicans do the explaining, because once you're explaining, you're losing.
MAGA Republicans always have the advantage in campaigns fought on this level of cynicism, for two reasons: (1) they are more committed to the bit, and (2) the Democratic coalition is more dependent on their ability to deliver results once in office.