Schneier hits the mark here.
Government only works at all if people care.
And if you tell someone that their job, and the organisation they work for - are of no value - then those people won't care any more.
I don't know what the outcome would be of large swathes of the government either being fired or not caring any more but we're going to find out and I don't think it will be good.
Or maybe not, maybe Trump and whathisname are right and government really is a complete waste of money. In which case there will be great money savings and the USA will be the better for it.