Well, if one at least entertains the idea that the whole putin's rule is totally against the interests of the country and the people, there's absolutely nothing illogical, strange or unexpected in any of his actions.
But sure, let me try that tinfoil hat on.
Lots of people say "Putin can stop this any at time if he wants to". But can he really?
Imagine for a second that you've been magically transformed into Putin, the president of Russia. You decide to stop the war. You whip out your pen and sign a piece of paper. The Duma obligingly votes all-in-favor the next day, like the good lap dogs they are.
But wait. The world hates Russians now. This comment will be downvoted into oblivion (which is why it's from a throwaway). People all over the world now hate Russian athletes, business people, scientists, and tourists. The country will remain isolated. Next, the EU's been sending all this money to Ukraine in hopes that they will get paid back with reparations. Will they suddenly play nice? Nah, you just saddled your country (remember - you are Putin) with crippling debt. Third - you made a good chunk of your population fight a war for the past 4 years, and told them it was just. Suddenly you have to do an about-face. What did they fight for?
So the Duma might just not play lap dog this time, and put someone else in charge...