After the great recession, revenues have consistently grown (without tax cuts). Expenses also grow. This is because our population is growing and our economy naturally grows.
The bet is on the deficit. Not revenue growth.
Indeed, it is the infrastructure bill itself that creates the most revenue growth, also funded by deficits. Specifically, an infrastructure bill will stimulate revenue growth by injecting a trillion dollars into the economy. That's a trillion dollars worth of growth funded by deficit spending, not tax relief.
The bet is on the deficit. Not revenue growth. Regardless of what other legislation is passed.