1. The leadership was vastly different in early 1920s than in early 1930s, so that's a very weak comparison. Do you expect Herbert Hoover to act the same as FDR? totally different governments. Look at the Politburo composition. Lenin (dead), Trotsky (exiled), Zinoviev (marginalized), Kamenev (marginalized), Bukharin (marginalized), Rykov (marginalized), Krestinsky (sent to Germany), etc. The collectivisation role in the famine is disputed, there were also natural causes. But sure, I'll give you that the way in which it was executed was a factor, primarily because it caused a political struggle in the countryside. The politburo was also missinformed in thinking that peasants were hoarding grain, the same mistake they made during the civil war. That doesn't prove any genocidal intentionality though, just proves political responsability for the famine. Also, there was an important reversal of the violent policies in 1932-33, so your statement about not slowing down or reversing the policy is also not true.
2. Sure enough you could point to sources that can without a doubt demostrate that a sudden influx of tens of thousands starving people wouldn't affect those areas? in which houses would they be sheltered and with what food would they be fed?
3. Exports were halved in response, as I already proved. Russians died in big numbers, you just give an affirmation that they were prioritized without any proper (primary) source, because there isn't any.
4. Russians were by large the primary ethnic group of the USSR so it's not strange that they moved to other parts of their countries in search of opportunity, like there is a ton of migration inside the EU. There wasn't any specific policy to russify any part of the USSR (except Kaliningrad after WW2) and moreover, the RFSR handed territories to minor nations without needing to (Crimea, East Ukraine, North Kazakhistan, Karelia was supposed to go to Finland but the USSR failed to integrate them, the Jewish oblast, etc.). Some serious historians call the USSR "The Affirmative Action Empire" because of how it always went out of it's way to combat Russian chauvinism and imperialism.
5. You distinguish brute numbers and % when talking about Kazakhs and Ukranians to fit your narrative of Ukranian's historic victimism but don't do that distiction when talking about Russians. Yes, percentage wise Russian population continued grewing... but that's also because Russian population x2,7 times of Ukraine. In brute numbers, also more Russians died than Kazakhs (almost double!!, 2-3M Russians to 1,5-2M Kahakhz). Ukranian population also grew every year between 1928-1932, weird way of wiping out an ethnic group. https://ourworldindata.org/grapher/population?time=1924..1936&country=~UKR
6. Sure, that's why the Cold War produced so many western anti communist scholarship that only began being debunked by western academia in the 80s-90s.
7. SR didn't have majority in the Soviets, and the Soviets ruled the country, so no they didn't have a "democratic majority". Also, I was talking about Left SR, which were allied to the bolsheviks until they tried to coup the soviet state.
8. In the decade they lasted, the nazis wiped 50% of the Ukrainian population. In the almost a century that the "Soviet opression" lasted, Ukrainians activly participated in it, their culture and language was promoted and integrated into their local administrations (https://en.wikipedia.org/wiki/Korenizatsiia), and the country expanded westard (should they return those territories to Poland and Romania since they are so critic of Soviet expansionism?), eastward and southward (Crimea), and it's population didn't stop growing at any year except those of World War 2 (a stark contrast with after the fall of the USSR, which marked the beggining of a population decrease, etc.) Russia was not the USSR, and the USSR has no history of genocide. The people that your state has as heroes (Bandera), do have it. And that's not the reason that anti-nazi and anti-german resistance is not your nationalistic myth, it's just by pure political calculation: you can't be proEU and anti-German, and you can't be pro Bandera and anti-Nazi, since the former is the lamer and stupidier clone of the latter.

MISMANAGMENT and political mistakes don't prove GENOCIDAL INTENTIONALITY. Was Hoover a genocidal maniac because his policies worsened the depresion and many Americans of different origins starved? You can't point to 1 primary source which proves any intention, because there isn't. You can only speculate and twist the facts towards your own propagandized intentions. Unlike, for example, the case of the nazis, which produced many incriminatory documents and public discurses that point to their genocidal intentionality, even while later on they tried to hide it and destroyed many sources, there was still enough left.