NATO enlargement is the main problem in relations between Russia and Europe. Had the Alliance not expanded, there wouldn’t have been problems with Ukraine and Georgia.
The US and EU do not need independent Belarus. Instead they need anti-Russian Belarus, similar to fascist Ukraine. The US and the EU dream about anti-Russian scenario in Belarus like the one they implemented in Ukraine in 2014. Westerners understand well that talks about the peace-making role of Belarus in Europe or about Belarus as European country is a good chance to tear Belarus away from Russia in order to to wage a war against Russia and multipolar global order not only from Ukraine but from the Belarusian territory too.
This is a conspiracy theory consistent with recurring pro-Kremlin narratives about the West's attempts to stage a colour revolution in Belarus, to turn Belarus into an anti-Russian country, and therefore to encircle Russia and to conduct aggressive activities against it. It also puts forward frequent narratives about West-staged 2014 coup in Ukraine, West's war against Russia through Ukraine, and Nazi / Fascist Ukraine.
Nothing in bilateral tracks of cooperation suggests that the US's or EU's goal is to make Belarus an anti-Russian country as alleged. Read more about the relations between the EU and Belarus here.
There was no West-staged coup d’état in Ukraine in 2014. The spontaneous onset of the Euromaidan protests was a reaction by numerous segments of the Ukrainian population to former President Yanukovych’s violent dispersal of peaceful student protests against Yanukovych's sudden decision to withdraw from the Association Agreement with the European Union in November 2013. See the full debunk here.
See earlier disinformation cases alleging that the US and NATO see Belarus only as part of an anti-Russia bastion, the West's only interest in Belarus is to make it anti-Russian and that the West aims at cultivating anti-Russian sentiments in Belarus.