What he says is that they’re going to retake the Crimea

Against the will of the people living there.

saying that children who have grown up in occupied Crimea have been exposed to Russian propaganda

They are Russian, they have chosen to be Russian. They are only exposed to their culture. They have no interest being part of a Nazi fascist dictatorship and neither do the other breakaway regions.

The International Criminal Court has been issuing arrest warrants for people involved in a Russian program

This is American propaganda. Russia temporarily moved orphans out of a warzone and has since moved them back. The International Colonial Court exists to prosecute the enemies of America and nothing more.

none of this seems like strange thing for a wartime president to say. Overall

If you agree that the Crimean people have a right to self determination then you not only see Zelensky as a wartime president, but an aggressor threatening an invasion too.

For the Azov point, you can just read the Wikipedia article

NATOpedia is not a serious source of information about anything political.