There was no economic or rational factors. The only thing that makes a lick of sense is the irrational.
https://www.theatlantic.com/ideas/archive/2022/03/putin-dictator-trap-russia-ukraine/627064/
Those are a warm-up, but then you have the purges since the invasion began.
https://www.newyorker.com/news/q-and-a/the-purges-in-putins-shrinking-inner-circle
Putin has sort of been the butt of jokes for years for killing anyone who looks at him funny. He's a KGB stooge, who made his career out of backstabbing and paranoia. His entire inner circle were afraid to tell him the truth, because he would kill them if they did.
He's never been "savvy", he's just been willing to kill as many people as necessary to secure his own power.
The classic authoritarian dictator who throws people out of windows for saying no. And whose vaulted military had body armor made of cardboard, because the corruption was so ingrained that every single level was accepting bribes and stealing shit.
I'm surprised that they're still going, but Russia has shown the world that they're a third rate military, at best.
As to Palestine. It doesn't matter what the resistance movements call themselves now. Israel will just say they're Hamas, and no one likes Hamas. There are good reasons not to like Hamas, they're religious extremists who want to kill all Jews.
And for decades, Israel has funded Hamas behind the scenes, while coming down extra heavy on any other resistance movement. And now it's all paid off for them because they can just claim that anyone they kill was actually Hamas.
https://www.timesofisrael.com/for-years-netanyahu-propped-up-hamas-now-its-blown-up-in-our-faces/
https://www.washingtonpost.com/news/worldviews/wp/2014/07/30/how-israel-helped-create-hamas/
This tactic of creating the perfectly detestable opposition has been used in quite a few places. For example, Greenpeace gets a lot of money from oil company heirs. Specifically the Rockefeller family.
I doubt anyone from Hamas, or Greenpeace, ever took orders from the people giving them money. They were given the money with no strings attached, because they were already jackasses. The money just extended their reach.
That's some blatant Russian propaganda there. Blame NATO twice for Russian imperialism.
The "Russia had to invade a sovereign nation because they were talking about joining NATO to prevent Russia from invading them" logic has some holes to it.
The fact that Russia has invaded their neighbors 14 times since the end of the cold war tells you why one of their neighbors would want to join NATO.
Also, remember that time that Russia shot down a commercial airliner? The Ukrainians sure as hell do. That was the true beginning of the invasion, which is why Ukraine was in talks to join NATO.
And yes, people have the right to defend themselves. But the Israeli government has locked down the anti-terror propaganda, because Hamas is pretty vile as far as organizations go. It's why Israel let Hamas grow and become powerful, and why the Israelis paid to keep Hamas in power for the last decade or so.
As long as Israel can point at Hamas, they have just enough of an excuse to claim their ethnic cleansing is actually just an anti-terror campaign.
Hamas is a full on terrorist organization, not that all terrorist organizations are bad. Or rather, there are some causes where a terrorist organization is the appropriate response. John Brown tried it. So did Nelson Mandela. But Hamas is a religious extremist terrorist organization. One that has distasteful views, and was sort of put in place by Israel for those views.
You see what I'm getting at here? Hamas is fucking evil, and Israel has mostly succeeded in making Hamas the face of Palestinian resistance against Israel.
I doubt many of the original leaders of Hamas are still alive, but that doesn't matter either when Israel can just lie and say that whoever they kill is Hamas. It's a bit maddening, and I doubt there's an answer to it all except for the other Palestinian resistance groups to step up their social media game.