Sending Carriers to Black Sea would only end it their destruction. Too many points they can be attacked. The supply lines for a large US force would be hard to set up—and can US forces take the WW I style shelling. Is our military men up to facing Russian Veteran Troops? North Koreans? No, this is not the answer. Besides, we would have to defend not just Ukraine but all of NATO. Think Russia wouldn’t move on Estonia? Poland? Kosovo? We are talking WW III and a horror show beyond all understanding. We wouldn’t be fighting Russia alone and many of NATO would not fight. Trump would not waste American lives for Kiev—or Mr. Zelensky.
I hope you are right.