Agreed, macroeconomic policy can often be unnecesary and can fuck things up. Later on in this post you mentioned supply. Don't you agree that much of the problems in the 70's were also caused by 'supply shocks' though?
What do you say about the gov constantly repeating that it'll pass on the revenues from the tax to consumers. (the means by which it does is another question). It's harsh but what are the alternatives you'd offer up?
Boosting ag demand is also boosting consumer confidence. That's something very important in keeping the economy flowing. Supply won't do much for that. And also, modern stimulus tends to be more constructive than that.
Truth.