Because you’re young, clearly. Maybe this is just the first election you’ve paid attention to. Every disaffected voter was like you, once.
Then we realized dem platform has nothing to do, whatsoever, with what the do in office. Even when they have a majority in both houses of Congress and can pass anything their heart desires, they actively refuse to pass legislation relating to the platform they sold us on. You can only be lied to so many times before you realize doing the same thing will not get you a different outcome. Voting dem will never improve your life. Maybe third party will, maybe not, but voting dem won’t, it’s empirically proven.
No child, they didn’t lose clinton the election she refused to campaign for.
And no, a genocidal cop that has only repeated Trump’s 2016 immigration platform has nothing in common with my preferred policies. Greens are he compromise party. The minimally progressive option of things developed countries generally already have.