I’ll comment on the wealth of Ukraine.
Historically, agriculture was a strength, and a nickname for the country is “the breadbasket of Europe.” Coal in the Donbas region, and warm weather ports in Odessa and Sevastopol, along with beaches, were other strengths.
Agriculture remains a strength, but this poses a problem. The farmers of the EU don’t want to face the competition that would result from Ukraine joining the EU. Given the realities that can no longer be denied, the EU will have to find a way to placate its farmers, so Ukraine could join.
Coal is no longer as valuable as it once was, but two enormous fields of oil and natural gas have been discovered (one is in the northeast tier of the country, between Kyiv and the Donbas region; and the other in the southwest, near Romania). With the pipelines and storage facilities Ukraine has, it could easily displace Russia in supplying Europe.
Finally, regarding warm water ports and beaches, travel and tourism has enormous possibilities for the people of Ukraine and its neighbors, should peace and secure borders be established.
The farmers don’t want to be forcibly deported to Siberia, either, which is what Russia did to them historically.