OK, so your position is that he equated Bernie's victory to a Nazi victory and thinks Bernie might order him killed, but he's not saying he's any kind of fascist or anything?
I do not think he equated Bernie winning to a Nazi victory. That is a disingenuous conclusion from the clip in OP imo.
In the other clip he said he's afraid Bernie is similar to communist leaders who killed people. A ridiculous and unsupported opinion. But he did not call Sanders a Nazi.
This is a thread about Matthews calling Sanders a Nazi, but that never happened.