You would be right, if you said the opposite of everything you just said.
There is a small kernel of truth there, in the sense that Democrats basically stopped caring about politics once Obama got elected, and this was due to haughtiness. This allowed the Republicans to sweep pretty much everything below him. Then when 2016 came around, the same dipshit Democrats that cared nothing for the midterm elections and let Republicans obstruct for 6 years howled like the political retards they were that Obama wasn't left enough and didn't get enough done about a host of issues. Many of these same dipshits aren't old enough to remember Bush, let alone anything that came before him.
So while the right was demonizing Obama/Hillary as some communist cabal that hates America, the left was demonizing them as Democrats who were basically Republicans. And this was sort of true, Obama was the most centrist President we've had in the modern era except for maybe Clinton, and Republicans had to run far-right to the point where they were basically just anarcho-capitalists who want to hand over the keys to banks and corporations to solve all our problems. Trump's rhetoric was a bit more centrist at times, talking about infastructure and vaguely promising people more healthcare, but those also happen to be the platforms Republicans oppose him on and haven't done shit about (Trump would be the most popular President in recent history if he actually managed to follow through).
Even then, Trump only pulled it out because he made wild promises to people in the midwest, that they would all have their old manufacturing jobs back, that everyone was going to have healthcare and no one was going to have to pay for it, that they were going to build up the infastructure, yadda yadda. But even then, the only way he was able to eke it out is because of a new thing where whoever wins the last major news cycle of the season wins the election, Comey handed the close election to Trump by making the last news cycle all about Hillary's emails for the seventh time.
Republicans have been getting slaughtered in down-ballot special elections, particularly in the midwest, and every news cycle is fucking terrible for Trump. Democrats are still dipshits but now they're motivated dipshits who aren't going to binge-watch transgender documentaries instead of voting.
Politics is the way it is because it's become all about what people hate. Buck-toothed yokel hates OBAMMER because SOSHALIZM but only has healthcare for their diabetes because Obama expanded Medicaid. Rainbow-haired campus freakazoid hates everyone outside the city because they're RAYCISHET NAZIS even though they grow all the soy and corn paste they shove in their trendy, opulent vegan cock-holes.
And the only way we get out of it is if we stop obsessing on Breitbart Diabetes Dan or Non-Binary Brittany. Well the left loses its mind over 20 Nazis in DC, the right tries to scare monger over 20 queers on a college campus complaining about taco appropriation. Neither of these things is particularly important, and until the various clueless dipshits in our country collectively realize that, it's only going to worse until it all falls apart. Probably due to the next financial crisis no one is preparing for or doing anything about.