again it depends, what are we spending it on now?

these questions are too general. it really depends on a case by case basis. if we are spending on "aid'' that is coaxed under the disguise of political manipulation like the USA does then no. but if it is genuine aid that is helping people then yes. If we are giving "Aid'' to another government to use for their own political agenda, then thats bad. but if the aid is given to good organisations or good governments that can show they are using that money to directly help people then of course we should.