Russia is not something anyone can solve from the outside; they have to figure it out themselves. Same for the Europe & the US, there are enough things to figure out here.
To do it because of Navalny would just be a out of a wish to punish, not out of knowledge it would actually change the situation. And is it the role of the West to dish out punishment?
Besides it would just be used by Putin to empower the internal story of the threat of the West & NATO.
And it turned Russian people more more away from the West and enforced the us against them story of Putin.
Putin is where he is because he doesn't hesitate to kill each and every person that questions his authority, you can't expect people in an environment like that to go out onto the streets to demand the dictators head because it will end in a very predictable way. But the general impression I get is that people are broadly visibly supportive but in private a lot less so if not outright against it. This makes it very hard to measure the temperature in Russia. There is a good reason why Putin keeps murdering the opposition (or removing them in other ways): he knows that if there is a fair election and a half decent challenger that he's history.
But Russia is big and I also know a handful of people where he is the one who gave stability & although they are not stupid the idea that he is fully lying or wrong is hard to accept for them.
They generally accept the Ukraine narrative the Russian Media portrays, since it's all they know; and they have no reason to trust the West more then mother Russia.
"67 percent approve of how Putin is handling foreign policy, fewer, 58 percent, approve of his management of domestic affairs."
https://www.norc.org/research/library/new-survey-finds-most-...
It's also the humane thing to do. Accept any LGBT and any Russian who lives outside of Moscow or St Petersburg who are being forcibly conscripted for the meat grinder at 10x higher rates (effectively murdered).
Half-done it could be very dangerous - getting many well-connected and affluent people with nothing against in principle to the Russian invasion of Ukraine, but who don't like the practical consequences for themselves.
Maybe disallow them from voting in local elections for 8 years after immigration so they have no political influence. And spread them around many countries so they're less than 1% of the general population.
Even if they're pro-Putin it might still be a net good getting them out of Russia. It's now a war of attrition, the #1 thing that matters is manpower (manpower for conscription, and manpower for industrial production).
You want someone able to keep things organized when the state cracks.
Russians tried to do that. Got labeled murders and told in words and actions to 'get back to their shithole' or outright to just die.
Quite surprising, that wasn't viewed favourably by other Russians.
As a Russian emigre myself, I can say that when you are calling for sanctions, you're calling for people like me to get screwed. Putin and his cronies don't seem too much damaged, on the other hand.
What doesn't stop to surprise me is that in every occasion that such dictators rise to the top of the foodchain there there is a whole cadre of enablers that can't wait to be part of the machine. Without them it wouldn't get off the ground. But they always exist and they always seem to exist in large enough numbers that these assholes get to make their play, to the bitter end in most cases.
Done on paper ;) Then europe looks the other way while their exports to kirgizstan and other stans mysteriously quadruple starting 2022