But it also sets up a system of strict limits upon how the government may go about promoting, establishing, insuring, providing, and securing, those things.
Very little of what the Obama adminstration is doing fits inside those limits.
Notice too that the only one of those actions that is not a direct action upon its object, is "promote". IOW, the Constitution was to set in place a system that would promote the general welfare, not provide, secure or insure it. Anyway, the Obamites actions are historicaly proven to harm the General Welfare, not promote it.