Years ago, a Congressman talking like this would have been roundly criticized, and likely voted out of office. Even liberal Democrats years ago would not have stood for such praise of communism or a communist leader.
How times have changed.
The most rational outcome to expect when somebody is married to a political process (in this case socialism) rather than the alleged intended goal of that process (in this case, the alleviation of poverty and oppression)is that they will tend to support the implementors of that process and the process itself rather than the intended beneficiaries.
Most leftists are married to a process; a means rather than an end. It’s always been that way.