I believe what he's saying is that he sees Trump and Sanders as the "extreme" members of their respective parties. I don't believe this is accurate. If you're looking for an extreme Republican, Ted Cruz is probably the closest thing to it. Some (being nice here, many people would say "most") of Trump's positions are so overwhelmingly stupid that nobody in politics supports them. Therefore, I wouldn't call him an extreme Republican, Trump is just extreme in his own way. Sanders, on the other hand, does have views that are mostly more extreme versions of the Democratic Party's views. The major exception for him is gun control, where he is less extreme than most Democrats.
Also, could you clarify what you meant by this:
I happen to actually the European system in everything but it's strict state rules, and it's socialism.