Steve's Barking at government borrowing takes away from the private sector

Oh I was doing my usual yesterday surfing the boob tube.
I heard another person from the peanut gallery stating that government spending hurts private business because the money that the government borrows drives up the cost of borrowing for the private sector.
That may have been true decades ago but in this present day with interest rates at it lowest one would love to have private sector as looking to borrow money at a low that government borrowed not to long ago.
Lets me try to set something straight, you don't have to be very bright in economics to understand that what was true decades ago isn't necessarily true today.
One of the problems that is happening now is the private sector isn't borrowing.
Let's make an assumption if the government started building roads and schools ect. the private sector will have to borrow money to build these projects.
Business will make money, along with the lenders. You think.