The stance of “you didn’t care about X, so you’re not allowed to care about Y” is pretty fucking dumb.
The illegal annexation of Crimea is inherently different.
Russia had good propaganda and muddied the waters by arguing that the majority of the population wanted this.
Ukraine did not stand a chance against the invading forces. The whole attack was finished in a month. The chances of retaking Crimea at that point were next to zero.
That was 8 years ago and the situation has changed dramatically.