Youre thinking of social Darwinism, not evolution.
Its not just tankie who ignore them. Its also anyone who knows anything about evolution, as things like chiefs and kings only started happening a blink of an eye ago (in evolutionary terms) we can ignore things like chiefs and kings completely.
However, our collectivism, mutual aid and cooperation is what set us so far apart from our competitors.
Of course workshy scroungers, who live off of other people's hard work, will only want to spend other peoples money.
Ask them how they feel about poor people doing the exact same thing with government money and you'll soon find out that they were just bullshitting you to justify their greed and exploitation all along.