Wrong about what?
Everyone agrees that the debt is a drag, including Obama, Ryan, Gop, Democrats and the study you cited.
Some people of course expect the debt to benefit you more than it costs. I don't since taking debt is just too great of an incentive for politicians to just blow your money, buying votes and doing very little that's worhwhile, or something that anyone would do with their own cash. Also since US is supposedly recovering, and is already very indebted, there is no point in taking more debt.
Of course paying interest prevents using one's money more wisely. But the Federal Government is not a person and
no one will ever foreclose on the United States.

We need to create jobs and our nation's infrastructure is in need of attention. We need to raise revenues and creating jobs does just that, and we need the Congress to prioritize how best to spend the money to aid the nation, not focus on those who bribe or threaten them.
Cutting services and benefits to the aged and infirm does not make their needs go away. They will seek help from their state and local government - both of which are also cutting away bone - the fat was gone decades ago.
Instead the GOP has refocused itself on the traditional wedge issues, Abortion, God, Guns, Gays and defending the wealthy and the financial services industry from the tax man...
First we need to create private sector jobs to grow the economy and raise revenues.
Do you not know that private contractors hire private sector employees to complete government projects (roads, bridges, etc.)?
However, I'm more curious as to why you think we need to raise revenues and collect more taxes from the wealthy and financial services (specifically for some reason) when the whole point of the OP is, oh that's right... the size of the debt does not matter.
You sarcasm aside we need to reduce the annual deficits; some of the cuts advocated by Ryan and the GOP have impacts on local and state government, many of which are in fiscal trouble. I also stated spending on interest is not a good idea, but, the danger of the debt has been exaggerated for political expediency.
Too funny.
On EDIT:
Not for nothing but I forgot to add that it was the Democrat Party who "refocused itself on the traditional wedge issues, Abortion, God, Guns, Gays", not the Republicans. The Dems wanted brand spanking new gun regulations and laws and have been driving the issue through their media pals. It's the Dems who, through the ongoing writing and rewriting of Obamacare are bringing up issues like abortion, contraception and religious freedom. And finally it's the Democrats who are flopping like dominoes to a new post-election position on gay marriage. (granted, they are flip flopping to the correct position on gay marriage IMO but that's not the point) The point is your point is full of crap.