The first is comical. The second I don’t get. That looks like sarcastic satire to me.
It’s not. They go on to justify East German guards gunning down escaping civilians as ‘preventing imperialism’ and a host of other questionable things.
Why ostracise people that see things differently unless those things are comically wrong?
You see the issue, or part of it. Some people overuse the word ‘tankie’ to mean ‘left person I don’t like’, but actual tankies - typically MLs or MLMs - hold incredibly vile and wrong views. I went onto lemmy.ml the other day to see, out of morbid curiousity, what they were saying about the war in Ukraine. A lot of “NATO PROXY WAR” and “UKRONAZIS” style discourse. Heinous shit. That’s not the kind of stuff you say “Agree to disagree” about, it’s not the kind of thing you give any sort of respect or legitimacy to; it’s the kind of thing you shine a light on and scatter whenever you see it.