Not taking sides, just some factual corrections to otherwise good post:
2. Because of this Euromaidan Coup d'etat (which was initially sold as a "struggle for freedom and against corruption", but the truth is that it was a bunch of nationalist, nazis and ultra-orthodox demonstrating against the pro-Russian government), the people of Crimea, Lugansk and Donetsk, regions populated by people of russian etnicity, declared independence from Ukraine. Crimea also organized one referendum in which the option of joining Russia won. IT WAS NOT AN ANNEXATION, it was a voluntary union that went through referendum.
I never tired to repeat that civil conflict is politicl in nature, not ethnical. Otherwise, it'd be hard to explain why Zakharchenko (last name ends with -ko, often assosiated with Ukrainian), who participated in antimaidan movement in Kharkov, eventually created pro-Russian "Oplot" battalion, and currently holds the position of DPR's minister of defence, is Russian. While Semen Semenchenko (real name Konstantin Grishin), the resident of Sevastopol, Crimea, the creator of pro-Ukrainian "Donbass" battalion, is Ukrainian.
Long story short, there're two parties of Ukrainians -- those who think that Ukraine in present shape and form stll has future and those who think it's doneskies and they need to do smth about it. Other political positions on gazillion of questions could be conclued from this one.
And here's visual representation of percentage of students who take their classes in Ukrainian rather than in Russian for last 20 years. Kinda give perspective on the popular Ukie's slogan "kill the Russian in ya":
2. The UN in 1948 was composed of less than 1/3 of the world nations. Russia, who was against the creation of the state of Israel, was not present in the voting that approved the establishment of the Jewish state (which they would have vetoed). Therefore, pretending that the 1948 backing of the state of Israel gives them any legitimacy is absurd.
Are you referrring to 181 UN resolution? If so, USSR was there as well as UkrSSR and BelSSR, which have been represented separately at the time, all voted for it. The resolution was about partition of the Palestine, but de facto lead to creation of the state of Israel. In general, Soviet Union was among prime UN members that created Israel along with military help btw, a substantial part of Israeli military officers at the time were Soviet officers of Jewish ethnicity with WW2 experience, add to that arms supply through Czechoslovakia and economic help.
Of course, eventually Soviet Union has changed its stance on Israel, in fact there were tensions following first Israel-Arab conflict.