The difference is efficiency of the government, if your government is inefficient and corrupted, and your political system has a lack of competition(US is the greatest example of that among democracies), than increase in government spending will lead you to disaster like it did with Venezuella, Zimbabwe, USSR, Kuba and etc
The question is, do you think US Government on all levels is efficient enough to be trusted with even more jobs/resources to manage? And if it's not, what the people of us should actually do to make it happen?