What are you even talking about. This all started back in the 90s, and has been going on since. In fact, plenty of western experts have been warning about NATO expansion for many decades. This only became controversial to mention after the war started. Here's what Chomsky has to say on the issue recently:
https://truthout.org/articles/us-approach-to-ukraine-and-russia-has-left-the-domain-of-rational-discourse/
https://truthout.org/articles/noam-chomsky-us-military-escalation-against-russia-would-have-no-victors/
::: spoiler 50 prominent foreign policy experts (former senators, military officers, diplomats, etc.) sent an open letter to Clinton outlining their opposition to NATO expansion back in 1997:
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::: spoiler George Kennan, arguably America's greatest ever foreign policy strategist, the architect of the U.S. cold war strategy warned that NATO expansion was a "tragic mistake" that ought to ultimately provoke a "bad reaction from Russia" back in 1998.
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::: spoiler Jack F. Matlock Jr., US Ambassador to the Soviet Union from 1987-1991, warning in 1997 that NATO expansion was "the most profound strategic blunder, [encouraging] a chain of events that could produce the most serious security threat [...] since the Soviet Union collapsed"
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Even Gorbachev warned about this. All these experts were marginalized, silenced, and ignored. Yet, now people are trying to rewrite history and pretend that Russia attacked Ukraine out of the blue and completely unprovoked.
Anybody who pretends that this all started in 2014 is deeply intellectually dishonest.