I mean this would be a resolution to the war. Both sides would agree to ban all travel between the two countries.
Yes, but how are you going to achieve that? If the country wants to attack another country, why would they even agree to this?
Russia would do it to hide Ukraine’s successes as a democracy from its population. In this way, Ukraine would pose less of a threat to Russia’s government.
Apparently the theory that Ukraine posed the threat to Russia's government is incorrect. Russia attacked because it wanted to occupy Ukraine and convert Ukrainians into Russians.