I think your confusing multiple issues - the people wanting to cut foreign aid and NPR have a different vision of what government is for, and when it is ok to use force, e.g. they don't think it's ok for someone to threaten to kill them to pay for NPR.
I'm a fan of NPR and I don't think it should be funded by the government- the government pays less than 5% of NPR's budget, but adds tons conflict.