> both are in their late 60s.

Joe Biden (78) just replaced Donald Trump (74). Prince Phillip died at the age of 99. Putin has a long way to go on natural lifespan.

That's assuming Putin is alive and it's not just the 5 doubles we see.

I'm reading about people wanting to get rid of Putin since at least 2010, the sad reality 10 years later is that he is still there...

I don't think anyone who wants to get rid of Putin expected a change on the same day and gives up if that doesn't work. It will take time and a lot of work. (Unless they want an assassination)

Nobody says that expectation is to change the dictator the same day, it's simple statement of fact, that it's much easier said than done.

35% of Russians disapprove of Putin, according to this:

https://www.levada.ru/en/ratings/

41% of Americans disapprove of Biden, according to this:

https://projects.fivethirtyeight.com/biden-approval-rating/

I personally don't have a ton of trust in polls like that (referring to the Russian one). It is a strong claim to make that Putin is more popular in Russia than Biden in the US.

It's not a strong claim. He is absolutely a lot more popular. Popularity doesn't work in the same way as in the U.S., in the Orthodox culture where there is no concept of independent opinion: doublethink is innate.

Russian thinking is wholly totalitarian, in the good old Hitleresque sense (while ofc, Russian state is absolutely NOT totalitarian, it's just a soft dictatorship not unlike vast majority of governments in the poor world). Totalitarian thinking means that Putin is "us", i.e. government, State overall, country, nation, and society are the same, they are inseparable: most Russians could not explain how is "society" is different from "state", or discard the whole concept of "society" as Western weed. Rejecting Putin thus means self-rejecting. Very few people can even think of it.