Assange/Žižek not really all that leftist after-all?

Finally got to see the second episode of Julian Assange tv show in which he interviews David Horowitz and Slavoj Žižek. While the interview is certainly original and much better than what western tv has produced for the past few decades, it still seems as if all three take a bunch of conservative premises for granted. Some issues, such as that Latin American leftist leaders are "dictators" as Horowitz claims, are just left unanswered in the room and one can only imagine that Assange/Žižek did not refute such charges as they were simply too far out to be answerable.
In other fields they seemed to have arrived at a pro-capitalist consensus. For example, is it really true that:

1. The natural state of human existence is war (at all times)? There may have been many wars in the past, but if full-scale wars were to start now between the major powers, then that would mean nuclear destruction of everybody. At the same time, the internet has made that we are no longer that isolated from one-another. War seems less and less like something "sell-able" to the world’s populations (the US seems like an exception, but hopefully not much longer. Once the empire crumbles, hopefully most will notice that they are just humans like everybody else)

2. Either the US or western Europe up to some years ago were the most perfect places imaginable in the world? Both depended on heavy exploitation of third world countries, and on actively killing leaders of movements there who tried to better the situation in their countries.

3. The will of the people will at all times be a problem for those wishing to create another, more humane (=socialist/communist) society? Much technology has been invited that would allow participatory budgeting and a collectively planed economy.

Assange’s proposal of testing out different systems in different countries and then letting people move between these countries according to what they prefer seems to have been one of the more revolutionary proposals mentioned in the program. But then again — what to do if one of those systems eats up more natural resources than what is available for everyone (such as is the case right now with 1st world countries)?

At any rate, one of the more intelligent tv programs of our times.