Okay, let me break it down for you:
Do you see this asshole?
He's a republican. He's president.
Do you see these assholes?
https://www.gop.gov/about/members/
https://www.republicanleader.senate.gov/senate-resources/republican-senators
They're Republicans in Congress. All of them. 99% of the time they support and ally with Trump.
The assholes above are those responsible for the shutdown and fucking comic book supervillains.
Want to see everyone that isn't a Republican in the legislature?
https://www.dems.gov/who-we-are/our-members
https://www.democrats.senate.gov/about-senate-dems/our-caucus
Notice a pattern? Here, I'll spell it out - every single Non-Republican caucuses with the Democrats. All but two are democrats, and those wno aren't are independent in name only, as they never caucus against the democrats or affiliate with any other political party, not even after 30 or 40 years. One of them even ran as a Democrat for President and was runner up.
So, for all intents and purposes, the only candidates that can keep Republicans out of power are Democrats. No other party or individual of a different partisan affiliation can, in any region of the country, no matter how big or small, emergr victorious, or even present a viable chance of victory.
So, in this society we call America, regardless of your ideoligical leanings, there are only two realistic outcomes to expect: a Democrat, or a Republican. For most of us, neither individual is the optimal candidate for our inclinations; That would be ourselves, but you can't get anywhere with 300 million candidates receiving 1 vote each from themselves. So we go for the best candidate available out of the plausible victors. Makes sense, right? Unfortunately the set size of plausible victors is no greater than two. You can either vote for a democratic leaning candidate with the best chance of victory, for all his or her shortcomings, or you can vote for a Republican, a party that leaves nothing but destruction and misery in its wake when it has power, and whose best to offer is Donald Fucking Trump, the inspiration for a god damn Muppet villain who enjoys nigh unanimous public and official support from Rs.
The choices and viable paths are readily apparent. Choose the best one available, if not for yourself, then for your neighbors, your allies, your home, your very planet. If you don't, and, well, this happens, your apathy wound up becoming complicity.
Jesus christ.