That would last until the first terrorist attack or economic crisis and then tend towards 0, because "we really need this money".
Besides you would probably be able to work around this with creative accounting. Let's say everyone wants to defund the military and put more funds into education; military training establishments now show up on the budget as "defence studies schools" because they are issuing general educational certificates to soldiers.
I think fundamentally if you think some particular government is going to just waste large amounts of tax money you should really just not vote for them. You vote in a government because you want them to make sensible choices in how to allocate resources for public projects so you can concentrate on your startup or whatever.
Sometimes this stuff can work on a local level. For example schools can have governing bodies of volunteers (usually parents) who get some say over how the school budget is used.
Besides you would probably be able to work around this with creative accounting. Let's say everyone wants to defund the military and put more funds into education; military training establishments now show up on the budget as "defence studies schools" because they are issuing general educational certificates to soldiers.
I think fundamentally if you think some particular government is going to just waste large amounts of tax money you should really just not vote for them. You vote in a government because you want them to make sensible choices in how to allocate resources for public projects so you can concentrate on your startup or whatever.
Sometimes this stuff can work on a local level. For example schools can have governing bodies of volunteers (usually parents) who get some say over how the school budget is used.