Hello Miss Mercedes !
Yeah this is a weird issue, no power when jumped to car, seems to think battery is good because voltmeter says so! I learned that lesson decades ago Someone else had a similar problem a short time ago, turned out that the battery was so 'shot ta hell' when he turned on key, bat volts crashed to the floor.
Some ignition keys have 3 screws or terminals, 1 for battery, 1 for ignition, lights, and starter circuit and sometimes you can wire sw. so you just have tail-lights and /or running lights so if you get stuck at night, you still have a few small lights so others will see you. But Tyler has nothing. Wondering if it is an in-line fuse between wire from battery and ignition switch, Says he put in new battery , wonder when he did that? and a new ignition sw. if it has 3 terminals, he could have wired it wrong, not with two, though. I will suggest he takes the two wires going to switch, remove from switch an twist them together, Seems like bike just might come back from the dead if in-line fuse is good.
The saga of the dead bike continues!