I see that many in here are victims of Russian propaganda.

I did not hear this from any Russian associated source.
I heard this in an interview with an old American diplomat/journalist (can't recall name). Based on his apparent depth of knowledge and lack of bias, IMO he was not pro-Russia or pro-anyone.
Please STOP underestimating us, we are not "victims".
I read the link you posted, it feels like sophistry to declare that "whatever the various Western leaders discussed with Gorbachev in 1990, these discussions were based on the assumption that the Soviet Union exists, and thus became insignificant with the collapse of the Soviet Union." And even they say that 'Baker reassured Gorbachev at the meeting that it was better for all parties to have a united Germany within the political and military structure of NATO than outside it. It is from this conversation that we find the words of Baker, which form the basis of the narrative: “If we maintain a presence in Germany, there would be no extension of NATO’s jurisdiction for forces of NATO one inch to the east.”'

Anyway, like Said said, whatever Russia thinks drove them to invade Ukraine. Trying to understand Russia's viewpoint is not the same as sympathizing with them or falling for their propaganda. Was Milton Myers a Nazi sympathizer for writing "They thought they were free"?

Idiots think others are idiots. Smart people have Dunning Kruger.