So, on one hand you state that Trump has gone lower than Obama's low of 8 years (as if that means anything less about the people rejecting him in your theory) and then you state Trump hasn't been in office but 6 months but hasn't come close to Obama's high.
Oh for crying out loud! Are we still counting California? It's 2017 man. Gotta do better than that next time.
I don't even pay that much attention to what the 5th largest economy thinks when it comes to our elections.
Let fact speak for itself. The polls had the result (popular vote of course. Since that is what they sample for) spot on within the margin of error. Check it it out for yourself.