The reason why Ukraine has become so close to NATO that it has caused Russia to go on a rampage cannot be separated from Joe Biden's behind-the-scenes intervention as US president and his son's energy business being there. China itself is not entirely happy, however the condition of bilateral relations between China and Russia will definitely be in this war directly, which is even more pleasing to the US because they are the ones who pit the two countries against each other even though they are still in the same family and are brothers. The Ukrainian president did not act wisely in bringing himself closer to NATO, regardless of economic and other matters. The point is never to take sides, because he is flanked by 2 blocks that are very heavy in history.
I would guess that the president of Ukraine getting 70%+ vote by promising to join Nato and EU was WAY before Biden became president. If you really think that it was Biden that started all of this then you were brainwashed by Eurasian media as well.
Zelensky promised to join Nato and EU before he became a president, that was literally the platform he ran on and people voted for him because they wanted to join EU as well, and that is how he became the president and this was during Trump, Biden wasn't even elected. Then Ukraine officially declared they want to join and only thing Biden could be guilty of would be saying they are fine with Ukraine joining and Russia should back off.
Not like Ukraine had no intention at all and then suddenly Biden said they should, this isn't a situation like that. Russia is the ONLY guilty party here, nobody else, anyone else trying to find a guilty person would be siding with Russia from here on out in my view.