Here is some truth that the left denies by saying it doesn't matter:

Americans, on the left and right, demand more from government than they are willing to tax themselves to pay for.  They would rather bankrupt their grandchildren.

Job growth has not kept up with our population growth, to the extent that many have left the work force and total employment is way down as a percentage of the population.  Drastic action is needed.

Much of what the government funds as scientific research is of such marginal utility as to be laughable.  It is time to retrench.

If Trump makes mistakes, they will at least be change from the unacceptable mistakes of the status quo ante.