It should have been a crowded field like 2008.
Because a crowded field did so well for us on the other side of the ballot? Both parties are their own worst enemy (and our's too). Nothing will change, however, without some serious reform (breaking up the 2 party system, term limits, killing the PACs and super PACs, etc..), but contrary to his campaigning Trump will not do any of that.
I agree with your general sentiment though. It was clear very early on that hell or high water, HRC was going to be their nominee. The Dems made it blatantly clear this time that there is indeed a ruling class in this country and we are just supposed to suck it up. It's clear the Reps also think that way too, but they were at least smart enough to not make it as obvious and even dropped Jeb when they realized that nepotism and dynasties weren't going to fly.
I'm not pleased that we got Trump, but I am estatic we didn't get HRC. Hopefully in the next 4 years either her health will have declined to make another run impossible or the Dems will have wised up and kicked her ass to the curb.