So, when the Wright Brothers were building their plane you were standing their telling them it couldn't be done eh?
Nope. Unpowered flight already existed by the time the Wright brothers headed to Kitty Hawk, and powered flight was right on the edge of possibility. The drives you propose, aren't. The problem is, you don't grasp that fundamental difference and thus assume that people who aren't as egregiously ignorant as you are the ones in the wrong.
Just because there isn't off the shelf technology at the moment doesn't mean we shouldn't strive for longer term solutions to interplanetary travel.
True. But those solutions must fall within the bounds of physics and chemistry - and nuclear reactors and ion engines, for the reasons I outlined, don't. Absent new physics, they never will.
Regardless of the propulsion system, having electrical power, lots of it, is the difference between coasting from A to B in a tin can vs something that could actually be called a Ship.
Only to someone who doesn't grasp physics in general as well as the mathematics behind orbital mechanics. Absent new physics, all vehicles in space are going to spend far more time coasting than under power.