Relying on NATO, which is an ineffective historical relic of the Cold War, is blatantly stupid and this mantra can be sustained only through massive propaganda. NATO is increasingly trying to drag us into wars that have nothing to do with the security of its members.
Democracy implies that people themselves determine the form of their existence. The Crimean people have chosen to be with Russia through democratic procedures, and this is not taken into account.
This is a recurring pro-Kremlin disinformation narrative on Russia's annexation of Crimea, claiming that people living in Crime chose to rejoin Russia through a legal and democratic referendum.
No international body has recognised the so-called referendum, announced on 27 February 2014, and held on 16 March 2014, which was organised by self-proclaimed Crimean leadership lacking democratic legitimacy and installed by armed Russian military personnel following the seizure of public buildings.
The Office of the Prosecutor of the International Criminal Court has stated that “the situation within the territory of Crimea and Sevastopol amounts to an international armed conflict between Ukraine and the Russian Federation. This international armed conflict began at the latest on 26 February 2014 when the Russian Federation deployed members of its armed forces to gain control over parts of the Ukrainian territory without the consent of the Ukrainian Government."
On 27 March 2014, the UN General Assembly adopted a resolution in which it stated that the referendum in Crimea was not valid and could not serve as a basis for any change in the status of the peninsula. On 17 December 2018, the UN General Assembly confirmed its non-recognition of the illegal annexation of Crimea.
The EU's policy of non-recognition of the illegal annexation of Crimea and Sevastopol includes a set of restrictive measures against entities and individuals responsible for actions against Ukraine's territorial integrity. In March 2019, on the fifth anniversary of Crimea's annexation, the EU reiterated its position of non-recognition of the illegal annexation of Crimea and Sevastopol.
For similar cases, see here.