It's not, though. The left/right divide is a fundamentally human personality difference. You're correct; we should unite against the elites. But the left doesn't recognize the right as fellow human beings. The elites cackle at the useful idiots and use them to take ever more power.

The thing with the police is that the left cannot distinguish between legitimate authority and illegitimate authority. It all looks like fascism to them. And when the right says, we should respect legitimate authority because society runs better that way, we look like the most evil nazis to them. They thrive on knocking down barriers and destroying things, and rarely stick around afterwards to face the consequences. It's the breaking they like, not the building again after.

Things are worse than they've ever been. The left is blaming the right for all of society's problems right now and is having a temper tantrum. If it gets better, it won't be for another generation. And frankly, with the schools turning out indoctrinated, demoralized people who have never heard dissenting opinions, I don't think it will get any better. One only look at Mao's China which did the exact same thing. It took 40 years and dozens of millions of dead before Deng Xiaoping said, "You know what? This doesn't work and is bullshit, let's try something new." And even he was heavily opposed and only barely won, and even then because people stood to get rich.