So because they are corrupt they have to surrender to Russia and the West isn’t allowed to help them defend themselves? That’s like saying that a person deserves to get shot by the police just because he has a criminal record.
Also the EU already approved Ukraine’s candidate status for accession and accession negotiations officially opened this year. So if Ukraine does things right they will be a member of the EU in ten years give or take. Guess what article 42.7 in the Treaty of Lisbon is. It’s a mutual defensive clause. So end of the day they wil be protected by the bloc whether they are a NATO member or not.