Ahhh love the Conservative slight of hand game you play. SOME of the founders owned slaves, most were wealthy or on their way to being wealthy- just like politicians today no matter their lean- pretty much all were at least publicly unopposed to the economic institution of slavery, many thought blacks were inferior to whites (helps with the slavery issue), their idea of military weapons certainly is outdated....
But to try and make a blanket rejection of an activist frame of mind because modern day Conservatives wish to claim an activist must adhere to the 2 centuries later version is rather weak tea.
For the most part any belief our Founders had in a 'limited' government was more due to finance than philosophy. We were a pauper nation compared to our European contemporaries.
But do remember, we pushed back hard against the British (northwest indian war), the French (Quasi War), First Barbary War, War of 1812, Second Barbary War, all by 1815.
The definition of activist may change over the years but most certainly the early governments, some run by the very Founders many Pubs cite when it suits them, didn't believe in limited government... not PAYING for the government services they wanted is more like it and continues today...
eace