Sorry, this is pro Russian bullcrap.
Ukraine is a country recognised as sovereign and independent by the United Nations. In the exact same way the Russian Federation is.
Ukraine’s sovereignty and independence is recognised AND GUARANTEED in over a dozen international agreements including two Soviet era Accords, the Helsinki agreement, its successor the Belovezha Accords, the Budapest Memorandum, two further border agreements with Russia, AND their security guarantees from China in December 2013.
Because of that mountain load of assurance, Ukraine has every right to join whatever security or trade alliance it likes and Russia has absolutely no credible right to veto them.
Ukraine has trade agreements and security guarantees from China (Belt and Road + assurance equivalent to the Budapest Memorandum).
Ukraine ALSO had trade and security assurances from Russia.
Ukraine ALSO had NATO partnership (not membership) - which Russia hates.
Ukraine tried to do a trade deal with the EU, Russia argued it should be present at those negotiations and be able to veto the bits it didn’t like.
Russia can take a flying f**k at a rolling donut. Nobody can tell Russia who it can and can’t do trade deals with. Nobody can tell Russia it can’t accept approaches from countries wishing to become new members to the CSTO, BRICS or CIS. Nobody tells other countries that they’ll be invaded if they attempt such an approach.
The same is the case for every other trade bloc, every other security alliance, and every other UN Charter nation state.
But Russia thinks the rules that apply to every other country on the planet, don’t apply to Russia.
This is not a civil war. China WANTED Ukraine to have trade deals with China, Russia AND the EU. The EU wanted the same. Ukraine wanted it.
Russia demanded a whole bunch of stuff it had no right to demand, some of its demands are technically impossible. It is at war with the West and with NATO because the world listened to its irrational demands and replied “that’s not how it works.”
Ukraine could be in the Belt and Road, in CSTO, a CIS partner, an EU outer ring partner (like Turkey and Macedonia) AND be a NATO partner. That’s what the USA, UK, EU, BRICS including China, and Ukraine itself wanted.
Retard Russia wasn’t having it. Toughshitskyi. The only thing that proves is, Russia is a delusional paranoid rogue nation.

Does Cuba have the right to have a Russian military base on its soil including nuclear armed missiles?
Is Kosovo a country?
Is the Monroe Doctrine no longer applicable?
Thanks, EUROTRASH, for the new entry in your series of mini-novels which nobody reads.
Your country is a useless, failing shell. Worry about that... or maybe just GTF off the forum.