Re: Difficult choice to make
If the sanctions keep turning former billionaire oligarchs into millionaires, or hopefully, but unlikely thousandaires, then one of them will find the easiest solution is to be rid of Putin for good.
The oligarchs don't run the place. And never did. They just got very rich. But other than people like Berezovsky, they mostly stayed out of politics. And what was done to Berezovsky was done as a warning ot the rest of them.
The government is mostly run by ex-KGB types - the so called siloviki. Now a bunch of them have become oligarchs. But not the same type. They don't own the companies they run, they're running the big state companies like Gazprom and the like. So they've also got loadsa money and the yachts, but Putin can take most of that away simply by replacing them.
Then you've got the inner circle, running the government. Who are also mostly ex KGB. But they're the ones with real power, and access to Putin. It's presumably going to be one of them that replaces him, if anyone does. In the same way the Politburo replaced Kruschev for taking too many risks with the Cuban missile crisis.
But I'm not sure that's possible any more. In the old days, Putin had a group around him, helping him to run things, and advising him. He's moved from an authoritarian "managed democracy", through an autocracy into what looks increasingly like a personal dictatorship. There is no Politburo equivalent to tap him on the shoulder and suggest a quiet retirement. And probably nobody he'd trust to protect him, if he did retire. Which suggests he's now in office for life. Which could be a very long time.