Honest question here, without any bullshit or whatever (and keep in mind that I have no horse in the race because I always said that both are/were horrible choices):
How?
What is it now? Invest? Or reduce debt?
Sorry, you can't have it both. There is just absolutely no way you can have it both.
And while I 100% agree, that before all other things, your country needs to invest like crazy in your marode infrastructure - who's paying for it?