I think you're going to have a hard time finding any evidence that the Founders intended for successive generations to reinterpret the rules of the Constitution time and again. You might as well not have a Constitution if those whom it was intended to limit are to be the ones who decide how much it limits them.
As for the 4th amendment's mention of "unreasonable", it actually has a quite specific meaning: If I'm not allowed to do it to you, neither is government - unless it has a warrant, or unless it's in a "hot pursuit" situation that won't admit of delay.
Well, we aren't supposed to need to reinterpret these indefinite phrases. We need only apply them to new and different circumstances.
You might as well not have a Constitution if those whom it was intended to limit are to be the ones who decide how much it limits them.
Well, there isn't any alternative to having the present generation interpret and apply the Constitution to current facts and circumstances. The authorization to interpret the meaning of an indefinite or vague phrase does not afford an interpreter with an unlimited range of meanings, but the acceptable options expand as the vagueness increases.