I don't want to pay for this.
You'll pay for this anyway. Even if it's not done. Gov has a fixed budged for infrastructures and such. If the money doesn't go there it will go in other stupid projects. Gov will spend your money anyway. it will just spent it in even more stupid projects.
This is a myth that money not spent in infrastructures will go to health or education. Health is already using something like 50% of the approx 80 billions our gov spend every year. Pouring more money on health wont solve anything anyway.
Also the deficit is around 3 billions every year now. 400 millions is only 13% of that.
Now is not a good time to spend 400 millions on a stadium. But don't be fooled. You're money will be spent. It will be used to buy votes. It will be used to make friends rich. It will be used to create jobs via services we don't really need. It will be used to fool people that we are improving our health system while in fact we are just pouring more money on a system that would need to be rethink.
Your money will be spent and the debt will continue to grow with a new stadium or not. In the grand scheme of things a new stadium is just a drop in the ocean of bad gov spending, useless programs, corruption, ...