They aren't that different tho. The range of policy and stances in policy would/could/does fall within one single party in the rest of the world.
Let's break it down.
Foreign policy = same, cept for the Pro-Putin MAGA crowd. So essentially, there's 2 sides. One side pro-"western" nations (EU, US, Can, Aus, NZ, Jap, SK, Iz, UK) the other is Pro-Putin (Rus, NK, etc, etc)
Economic policy = samesies; both NeoLiberal, both pro-wartime debt spending, both austerity as matter of course, suppressing knowledge of an alternative even existing.
A happy worker is a productive worker. Shut up and do your job.
one side pulls hard hard right, the other comes pre-negotiated to guarantee plans will land further right than they've been written. Like clockwork, undoing the gains from the new deal, slowly and steadily to not invoke revolution. Democrats pass more Republican legislation than Republicans do. We have a choice of working class slavery with no taxes on business or the wealthy, or working class slavery, now but with 10% less taxes on the middle class - but with higher gas prices, cuz fuck you. Since communism fell the US has turned its ire inward trying to turn everyone into proletariat. In other words, with only their labor to sell for $. Add in the destruction of small, local business, rigging the stock market against retail/'dumb' money but usurping retirement accounts and investing everyone's pensions into their pyramid scheme, essentially holding everyone, not just those that want change, hostage
Social policy = the ONLY difference. This manifests not just thru media, but judicially. Both Pro-Police state. Both twist Mass media (and that's 5he only media now) into the 5th government branch, regurgitating the governments propaganda.
Republicans are varying degrees conservative, pining for years long gone that no one has actually lived thru. The right wants a return to the post war era, minus unions, taxes, and civic investment (the things that allowed the middle class to exist). Democrats are socially conciliatory. Which is seen as spineless. They'll go along with the get along. But they'll never actually spur change, just appease w/e unrest and go right back to fellatiating corporations and police unions.
Civilians on both sides want change. Both sides can acknowledge that America is broken but one side says it's because of the transgenders and the gays and the other side just says, to song and dance, "hey, we aren't them 👉" to distract from the pointing fingers at consolidated wealth as the problem.
So it's get in line, act in line, or get benched.
Fuck America. We're out here starving and we have the choice of a road side carcass or a multivitamin but never actual food.