Ok, so you're super critical only to concepts which oppose the side of the story you believe to be true? Have you ever applied this same level of scrutiny to the information you approve of? Until this takes place, you can't logically be confident in your stance whatsoever. But, do whatever makes you happy, I won't argue against it. Yet it's ridiculous to write off anything in opposition just cause it's not as you understand it.
Here's the sources you more or less asked for, I made sure it's from mainstream sources seeing as you're opposed to independent media for whatever reason.
UK Government coving Ukraine in 2014: https://commonslibrary.parliament.uk/research-briefings/cbp-9476/
Here's a NewYorker article covering it too: https://www.newyorker.com/news/q-and-a/why-john-mearsheimer-blames-the-us-for-the-crisis-in-ukraine
Not sources I know at all, just trying to provide something that an individual who thinks Scheerpost is Russian propaganda for some illogical reason will give more validity. All mainstream propaganda spins the story to paint the US as the hero, which alone should make you highly curious of the other side to the story.
But based on your user name, it makes way more sense a primative eukaryotic lifeform struggles to decipher the massive bias from mainstream news sources these days lol.