Because it is taken as axiomatic in some strains of Conservatism (Reactionary, really, but they're pleased to refer to themselves as 'Conservative') that spendi

Because it is taken as axiomatic in some strains of Conservatism (Reactionary, really, but they're pleased to refer to themselves as 'Conservative') that spending tax money on anything other than the military, the police, and the privately-owned jails is unconstitutional. Because having another tax-paid F-22 is not Socialism, somehow.