So taking a part of Ukraine was cool back then but all of it now is not ok. Just don’t get it.
Both invasions were wrong, but taking only the 5% which is most pro-Russian, is a lot different than taking 100% which overall is strongly Ukrainian Nationalist.
The Crimea was been Russian since the time of Catherine the Great. Russia has it’s largest naval at Sevastopol in the Crimea. Russia has fought a least two wars over the Crimea. The Crimea voted to be part of Russia. The Crimea belongs to Russia, not the Ukraine.