What the people say in polls is not important. The US has been threatening to let Ukraine into NATO for years, the leadership in Ukraine wanted to be in NATO (cuz leaders in countries often don't follow what the people want) and Russia used the threat of an application to NATO along with other reasons to constitute invasion. Which, btw, Ukraine applied for NATO status in September of 2022, so your feelings are invalid.
I'm well aware of how the Russian oligarch mindset is. But this is a war that both Russia and the US have wanted and instigated for a very very very long time. It's also within the US's best interest to keep this war going on as long as possible and turn it into the next Afghanistan if it yields enough profit. Not everything that paints the US as bad guys is Russian propaganda. Remember, US bad AND Russia bad.