"Every dollar being lent to the government is a dollar that is not being invested in our economy" is 100% absolutely wrong, especially right now. There's no 'crowding out,' and debt-financed government spending is not taking money away from "our economy." Moreover, government spending doesn't just vanish into nothingness, it gets spent on things. Or it's used to provide money to people who then spend it on things. It doesn't become magically detached from the economy.
During a full, robust economy, yeah, government spending can crowd-out private spending. And the appearance of higher interest rates can make a large debt load a significant issue. But right now? With a huge GDP output gap, high unemployment and being stuck at the zero lower bound for years? No, absolutely not. "The debt" isn't what's causing people to have bad jobs or no jobs.