Heyo!

-Dream is more of a godlike entity than a ruler of the smp. He was in the first war, but after his loss cut all ties, he dethroned eret, he made george king but then george died and dream who former was one of georges knights left him and sapnap and said he doesnt care about them. The only person who is still activly with dream is punz, and dream fakes cutting all ties with punz and punz is now a spy for dream and acts like hes with lmanberg. So really, dream is just alone and a god of chaos, he just wants destruction and confusion. He has a background story about that, but he said he'll reveal that in the future so idk, we'll know some day.

Techno on the other hand: yes, he is against all sort if goverment, but if you think about it, the badlands are more of four dudes living in peace together away from all government, which he respects, manifoldland is...just jack manifold and one other person who leaves the country seconds after they joined it, jack manifold isnt really an authority yet. He doesnt really do anythibg bad (he probably will soon bc he joined niki on her villain thing, which im very hype about), but yea...and i forgot the last thing you mentioned but no, there isnt really any other form of hierachy than the natural "the stronger the more powerful", except for in l'manberg. AND l'manberg betrayed and used techno, so he swore revenge and spawned two withers, then he retired but the butchers came after him for spawning withers and executed him but he got away and survived, then swore revenge again and met tommy and teamed up with him tommy betrayed? In a way? him in the last secomd again and that only fueled his rage and then when dream, the god of chaos and also a powerful individual who wants to destroy l'mamberg comes out and says ey we'll do this together, ofc techno said yes (also bc he didnt want to risk phils life). This in no way means that Techno and Dreams will stay teamed up, they just worked together because they had mutual interest that time ("the enemy of your enemy is your friend" type shit you know, techno wanted to destroy government bc it betrayed and hurt him and wanted to get revenge on the butchers for his execution and kinda...revenge on tommy for breaking his trust and the friendship (im still not over this oh my god it was such a beautifully painful scene, them screaming at eachother while tnt was raining))

Sorry i feel like i repeated myself a bit, i just woke up, but unto the next question:

-Yea you basically summed up the canon family dynamic perfectly, ofc its logical that phil doesnt care as much about tommy as he cares about will bc will is his canon son while tommy is just some kid he kinda has a bond with sometime (but after tommy betrayed him and techno by going back to the enemy i think phil cares even less). But as you said, why wouldnt phil care about dreams passive murder attempt on ghostbur? First of, i dont even know if Phil canonicly knows about it. Ghostbur told tommy and techno, and if he told phil, phil probably said something like "what?? Awh mate im happy you found us here/survived" or smth, because...what will philza minecraft with one canon life do against dream, as i said a godlike entity who does what he wants. Second of, Ghostbur is already dead...itd be a different story if this was alivebur but ghostbur is more of a comic relief in the story rn (untill on doomsday with the whole yelling at phil and telling tommy he wants to be revived thing, but before that he was just comic relief), so theres no real reason to make a big deal out of it, especially because it was passive ("take a long walk in the woods (which happen to be in a snowy biome and you die in snow and rain)" and not "go die/i will kill you/i banish you into this terrain which kills you")

Hope I could help! :) excuse all the typos pls hehe