As is nearly always the case, there is nothing in your post but bullshit.
Don't try to talk about what Russians think because it is against the law to think in Russia.
Putin intensifies punishment for "fake news" about the war and the Russian occupiers
Russian President Vladimir Putin has signed a law on intensifying punishment "for discrediting the participants of the special operation".
Source: Pro-Russian media outlet RIA Novosti on
Telegram
Details: It is noted that not only do soldiers fall under the law, but also so-called "volunteers", for example, mercenaries from the Wagner Group.
Punishment for alleged "fake news" about the Russian army carries a maximum penalty of 15 years in prison.
So, it's not that the Russians believe Ukrainians are Russians, but that Putin told the Russian people to believe Ukrainians are really Russians and if they disagree, he will throw them in prison for fifteen years.
With Putin treating the Russian people with such savagery, it's no wonder Russian occupiers in Ukraine are so comfortable committing war crimes against the Ukrainian people.
We both know there was no genocide in the Donbass. While Yanukovych was in office Putin effectively ruled Ukraine, but when the Ukranian people rejected Yanukovych, Putin organized and armed militias to attack Ukrainian government buildings and Ukrainians who did not support Russian control of Ukraine and when Putin's militias failed to take control of the Donbass, he sent in Russian troops. To restate, Putin tried to take over the Donbass by arming a small minority of the people there to impose a Russian dictatorship over the Donbass and then sent in Russian troops to help, and that was the cause of the violence and death in the Donbass, not genocide.
The difference between the US annexation of Texas and Russia's annexation of Crimea and other parts of Ukraine is that the annexation of Texas happened 170 years ago. At that time the US was colonizing most of what is today the US and Europeans were colonizing Africa and Asia and Russia was attempting to colonize anything it could, but the rest of the world has evolved since then, and what was accepted practice in 1848 is criminal activity today. Putin may be telling you it's still 1848, but in Russia, it's 1984 all day every day.
Whether the US invasion of Iraq was a mistake or not, the US did not try to annex Iraq or steal its wealth or turn it into a US colony as Russia is trying to do in Ukraine, and while some countries think the invasion of Iraq was a mistake, as the recent vote in the UNGA to condemn the Russian invasion of Ukraine showed, most of the world thinks Russia is an abomination, and only six countries in the world bought the Putin bullshit you ae trying to sell here.