That's based purely on conjecture and is the kind of fallacious rhetoric that prevents dialogue.
It's a logical fallacy known as the "Slippery Slope".
Discussion
A Slippery Slope Fallacy occurs when an argument suggests that a single action or event will lead to a series of other events without providing substantial evidence to support that claim.
Yes is is very easy to support that claim since russia already did exactly the same inlthe war against Ukraine.