Which means that there is an "excess of 1.5 millions of people" in Donetsk Region, that "[people of] Donetsk Region mustn't be undestood [by the people from the rest of Ukraine], and Donetsk Region [and it's people] must be used as a resource instead" and "I don't know how to solve that problem [to remove excessive civilians], but the main thing is that some people must be physically eliminated".
Wow, this is truly creative editing. None of your insertions are implied from the context and the quotes you picked up are several minutes apart. In particular, he talks about 1.5 millions of people lacking meaningful job prospects as one of the causes of the unrest (which is true). A few minutes later, when he talks about about killing people, nowhere he implies millions of civilians, in fact, it's obvious he means armed militants.