The idea that mainstream political thought has embraced MMT is ludicrous. Also, whether MMT can be used to justify all kinds of atrocities is not germane to the question of it’s accuracy as a descriptive economic theory.
The rest of your discussion here primarily consists of simplistic misunderstandings of MMT. For example this-
The contradictions in MMT are enough to make any rational person start to question their own sanity: taxes give money value? So… places with high taxes have more valuable currency?
demonstrates a severe misinterpretation of rudimentary MMT concepts. I can provide a point-by-point rebuttal to your comments, but I need some confidence that I won’t be wasting my time.