I'd also point out that US political discussion gets pushed into narrow channels that don't fully express what's going on in the country. Abortion, LGBT issues, states rights, whatever the fuck the vagaries of "small government" and "the economy" are supposed to be. The information we're provided about candidates distills complicated issues into a series of yes-no questions. Bernie and Trump both had issues outside those questions and only could get their messages across by being so entertaining and difficult to summarize that news companies would just show footage of them talking. And yes I would say Bernie was entertaining, he was dry but he was blunt and very determined to stay on message.
Other issues outside the yes-no summarization: environmentalism wasn't part of the mainstream political discussion until Al Gore went and made it part. Nowadays, legalizing pot (and more broadly, undoing "hard on crime" and "the war on drugs") is an issue that's been broadly important to many Americans for a long time yet its been mostly absent from the party platforms and the mainstream news discussions. Although that's changing. Let's see... police reform, huge issue on the local government level but tiny issue on the state and federal level. Net neutrality is another big one. Foreign policy is a huge issue that gets neglected. When politicians get asked questions about diplomacy they get asked fundamentally shallow questions like "what would you do to promote peace in the Middle East?" There's just no effective way to answer that until you're elected, and no one is going to say that they don't *want* peace in the Middle East. A question like "do you believe we should continue sending arms to Saudi Arabia" or "Do you think the cartels are a threat to the US? Is it our place to try to stop them and if so what would you do?" Or even something like "if the EU had an economic disaster right now would you loan them money to keep countries from defaulting or would you cut them off?" Just... something vaguely hardball that would reveal something of substance about how a candidate thinks. Obviously every candidate in a primary* is going to have the same answer to a vague question like "what will you do to win Americas' wars/help the economy."
I guess what I'm saying is in the US we so rarely see candidates running on their own issues. Al Gore, Bernie and Trump being obvious exceptions. Most candidates slot themselves into the same party line issues. And so we get the odd situation where the 2000 elections and 2016 elections featured similar talking points in a vastly different world. Or at least that's what it feels like, I'll admit that I've only been politically aware for like 10 years. Someone older than me can talk about that one but from where I'm sitting it feels like our political "issues" have remained static through like 4-5 decades of important change.
*...prior to 2016