If the Western leaders had any foresight, they would come up with a scheme that enables them to do so and drains Putin's manpower. Anything from rebuilding Ukraine to getting them a free ticket to Brazil.
Unfortunately, as demonstrated by dependancy on Russian gas, western leaders have the foresight of a frog.
The recent visa restrictions only help government propaganda that the West hates the russian people so you must fight.
Also braindead decisions like language test centers banning Russians so now you can't get a test to apply for a job or visa.