Even if you add all Jill Stein votes to the Democratic Party and Kamala in every swing state and everywhere else: it would not have made a difference [Source].
I know it's easy wanting to find a scapegoat now. It's not the immigrants, it's not the “leftists”, it's not the working class. It's Trump, his racist policies, and the Democratic party trying to copy them in an attempt of winning over undecided voters, when in reality they simply validated Trump's positions.