I would politely disagree on your categorisation of ideologies, especially with your use of the so called “political compass” as it is an inherently falsifying and misleading “tool”.

Also I’d say that state capitalism and state socialism are distinct and separate things.
But there are a lot of nuances there. And I must admit that I’m not sufficiently informed to explain it correctly. Like I wouldn’t put the NEP and Stalinist era USSR, and the "P"RC today (which is arguably a bourgeois state of a new type and so on) all in the same category.

I’m at this point in my knowledge journey where I know enough to understand most intricacies and nuances on at least a surface lvl, but lack the depth to properly explain it -_-

I’m personally not an ML, but do believe that there is a big divide between most internet "ML"s as seen on Grad, Hexbear and so on, and actual ML IRL. Also, historically, Marxisism-Leninism has been a liberatory ideology in former colonies and the 3rd world in general, you just have to look at movements with Comrade Bishop or Thomas Sankara at the helm, in Grenada and Burkina Faso respecitvely.
Fun fact regarding those two, both were brutally surpressed by imperialist/colonialist powers. Sankara was shot in a coup orchastrated by the French and the USA, tactless as ever, just straight up invaded Grenada…

My stance on inter-leftist (read socialist) interactions can be summed up as follows: Unity in theory is unrealistic, but solidarity in praxis is vital.
You can’t reconsile two fundamentally different (not opposed, mind you!) worldviews (ie. materialism and idealism) and even inside of those two there are laaarge differences, but as long as the goals are the same, I believe there should be pragmatic alliances and solidarity.

Regarding “democratic socialism”: Virtually any “democratic socialist” party is as I described, especially in the imperial core and virtually everywhere nowadays.
Historically there used to be examples in the imperial periphery like the movement with Salvador Allende at the helm, that actually tried to do good things, but ultimately failed because their idealism was exploited by the CIA…

EDIT: I’d also like to make you aware of another thing: I see the German and European flag i your username. The EU is a (neo-)colonialist/-imperialist entity.
I get all the “Union of peoples” popularity. I’m all in favour to (con)federations like that. It’s just that I’m categorically opposed to unions of financial capital, which the EU boils down to unfortunately

Or mb I’m just misinterpreting your usage there :/ (Edit moved to separate comment, since I mixed up the OP of this thread)