I don't know. I don't take any of these people from these videos you linked seriously. I've seen some videos of Dore and he seemed to parrot discredited sources and conspiracy theories.
On the issue of Russia, there's no doubt they've made concerted efforts to interfere with American life and politics, in much the same way the United States interfered in Russian life and politics in recent history (post-Soviet collapse, Yeltsin period, etc.). No doubt that Putin is a cruel, malevolent authoritarian. But it is interesting how some liberals have a myopic focus on Russia's foreign policy and ignore NATO/US imperialism.
On the topic of voting or not voting for Clinton, Trump, or a third party, I don't know. I'm a Marxist and I don't participate in electoral politics, at least not in the current configurations offered under the US electoral system. Many of Trump's policies are disastrous, but there has been a certain systemic block on his ability to have what he wants. And I think many of Clinton's policies, such as her enthusiasm for war in Syria and staunch support of US imperialism, made her an unpalatable choice. But I choose to not get involved in any of that false dichotomy stuff anyway. I don't view the Democratic Party as a part of the left. In the US, it's a choice between the traditional right wing and far-right populism.