[1] The election has been widely recognized and endorsed as being fair and an accurate reflection of voters' intentions by all international agencies observing the election including the OSCE and PACE: https://en.wikipedia.org/wiki/2010_Ukrainian_presidential_el...

You provided a source to show the elections were valid but who was questioning that? The cause of the uprising (from wiki)

"In November 2013, a wave of large-scale protests (known as Euromaidan) erupted in response to President Yanukovych's sudden decision not to sign a political association and free trade agreement with the European Union (EU), instead choosing closer ties to Russia and the Eurasian Economic Union. "

And you also speak about lack of representation but

"A total of 315 of the 349 MPs registered in the sitting hall supported the document on Friday." [1]

That's a huge majority in any political system. I think there's room for debate whether the people were represented sufficiently by the president's actions.

Regardless, again unlike jan 6th, a foreign country was involed and later invaded. Two, the revolutionaries reason was truthful and not a lie about election fraud , and three a meaningful percentage of the population was involved which gives some merit to a revolution.

Sources

1.https://www.kyivpost.com/article/content/ukraine-politics/pa...

The motion you are mentioning was the Ukraine cabinet passing a resolution (in other words a statement of intent) to continue working towards an EU Association Agreement, the exact same sort they currently have with places such as Israel, Egypt, South Africa, Syria, and many other such nations. [1] That cabinet then chose to not pass any further acts that would have been necessary to move forward with said agreement. Instead it started moving towards the creation of a 3-way association agreement between Ukraine, the EU, and Russia that would help ensure trade could flow amongst all parties. [2]

That's when you started getting protests, which quickly escalated into riots and insurrection efforts. And you then also get completely bizarre scenes like this [3]. That is John McCain in the capital of Ukraine, telling protesters that America is with them and that their future is with America and Europe. Imagine if you had something comparable during January 6th from comparably high level Chinese/Russian officials. It's not only completely surreal, but also understates the issue. Because this was effectively a superpower declaring war on the current establishment of a much weaker country, which is going to endlessly embolden insurrection efforts.

As for merit, neither the protests nor insurrection were supported by the majority of the country [4], at least not until the government was overthrown at which point there were reasons for self censorship, and likely also disrupted polling as various regions began rejecting the new government and declaring their independence. And I don't believe you've considered the implications of your statement that so long as a "meaningful" percent of people participate in an insurrection, it has merit. US elections are regularly decided on near 50/50 scales. Obviously you don't support the idea of the losing party now just trying to violently overthrow the winning party. The only thing that large participation would show is the degree of radicalization among the losing party, which is certainly not a positive thing.

[1] - https://en.wikipedia.org/wiki/European_Union_Association_Agr...

[2] - https://en.wikipedia.org/wiki/European_Union%E2%80%93Ukraine...

[3] - https://www.youtube.com/watch?v=93eyhO8VTdg

[4] - https://en.wikipedia.org/wiki/Euromaidan#Public_opinion_abou...