That's garbage.
Putin wants to completely dominate and Russify Ukraine and then use Ukrainians for meat sacrifice attacks on the Baltics, Moldova, Poland, etc.
Putin also wants to take over former Soviet countries to the east.
He's even claiming Alaska now!
Helping defend Ukraine with arms is the best way to stop Putin and avoid the need for U.S. troops to go there.
Putin has no regard for Russian or any other lives.
In this war he uses far provincials and minorities to sacrifice.
He tries hard to avoid touching people in Moscow and St Pete because then he would risk revolt.