I just remembered he reserve the “What’s mine is mine” description for “godless capitalism”.
It’s too late to ask Dr. McGee for his real opinion, since he’s been with the Lord for about 23 years now.
Your summary is good, though:
“Communism is always bad,
but Capitalism is inherently good,
but can be used for bad.”
I wouldn’t go so far as to say that Capitalism is inherently good. While certainly better than most of the alternatives out there today it is, in itself, a morally neutral system that can be used for good or for bad.
The key lies in Scripture. One cannot serve both God and mammon. In a society that both serves and loves God, Capitalism indeed leads to many great things. But woe to the society that embraces it with lust for mammon in its heart...