It's just too much of a cost to be connected to a regime that wants to damage everyone else.
Let's assume they lose in Ukraine. That's still not the time to remove sanctions. They need to change in several ways.
No more government lying.
No more interfering in elections.
No more bullying and threatening anyone.
No more autocratic leadership.
No more crooked oligarchs.
No more corrupt judges.
If we can see those kinds of changes, then I'd welcome them back and would hope to see them prosper.
At least one thing has changed. The threat they pose as a conventional force is much reduced. Thank you, Ukrainian heroes.