The car doesn't even start with a boost.
I'm looking at my manual. Could the problem be another electrical wire that has gone, or maybe the ignition module or distributor? I don't know much about these systems.
In the first post you said that the solenoind clicks ,but it wont turn over.
When you turn the key and hold it ,does it click repeatedly( click -click- click) until you release the key? If it does you probably have a bad battery or connection.
Or does it click once, and no starter turning as you hold the key in the start position? Probably bad contacts ( the video)and no power getting to the starter motor.
Or your battery , starter, connections are fine and there is something mechanicaly wrong with the engine( engine is frozen or has to high a resistance to turning).
Try turning the engine over by hand ( turn crank bolt ) to make sure its not an engine mechanical problem.
In your last post you say the car wont even start with a boost . Do you mean start( engine running), or wont turn over( starter not turning engine)?
The terms " cranking " and "turning over" say that the starter is working and the engine is turning , but not starting, "Starting and runninng mean the engine is actually running.
Not trying to be a smart ass ,but the distinction has to be made to tell whats really happening.
If you have, or can borrow a multimeter that has a clamp on ampmeter that will help figure out the problem. Just clamp it on the cable from battery to the starter and have someone watch it while you turn the key. If you have a high current draw and the starter will not turn ,then the starter is bad/ binding or your engine is frozen. You can also feel the cable with your hand after trying to start it , if its hot then its passing alot of current.