The deposed Ukrainian president was Viktor Yanukovych who was a Putin puppet leader, and Putin later boasted about how he helped him flee the country to escape arrest. No doubt the US did support his removal by the local population, but it was hardly against the wishes of the Ukrainian people.
The rest of what you have written is completely your own opinion and unsupported by the evidence. There have been democratic elections and several changes of presidency since then with Petro Poroshenko elected in 2014 and
Volodymyr Zelensky 2019, who has huge popular support.
