I think a practical issue you have to deal with on this sort of topic is what is done versus what is said. Illegal immigration is a great example. There's no part of any official DNC that overtly supports illegal immigration, yet policies and behaviors show an intent to enable and facilitate exactly that.

On the speech issue, here [1] is a rather great bit on DNC efforts to censor speech by the WSWS/World Socialist Web Site. The article mentions the ongoing obsession with censoring "disinformation" when disinformation itself is often little more than truths that counter the official lies of the day.

[1] - https://www.wsws.org/en/articles/2019/11/09/pers-n09.html