Euromaidan and the subsequent Revolution of Dignity were supported by various Western actors, but it is only natural that Western actors would support a pro-Western uprising. There were genuine nationalists on Maidan Nezalezhnosti at that time, even though they never particularly liked the EU, the US, or any of the international organisations. This is because nationalists in every country bordering or even near Russia view Russia as a more immediate threat than anything else. And, as you surely can see, for a good reason. Euromaidan was primarily about opposing the pro-Russian course the Ukrainian administration was on, and being anti-Russian is something that transcends other political differentiations — just as being pro-Russian does.