I can't deny there's a hint of truth in those a statements if I try to interpret them very artistically. It's probably not meant to be taken literally

During a war, when a country has a common enemy, the politicians of different parties stand united and stop tearing their political opponents apart, which is very rare. A good example is 911 for USA and currently what'shappeningin Ukraine in the Russian invasion. Hence, war outside is political peace inside.

Freedom is Slavery can also be interpreted as the illusion of freedom being given choices makes people choose to accept the modern aspects of slavery - debt, exclusivity contracts, NDAs, media brainwashing, tighter laws and regulations. Making people believe they are in a wide open field but in reality are just playing in the confines of boundaries already set up.

Ignorant people who believes they are right is available for all of us to see, these people can be people that believe in a false reality like flat earthers, religious extremists, dictator supporters, or even people who gets brainwashed by biased media. These people see the rest of the world as a threat to them and they unite and making their group unfortunately stronger, it also allows an echo chamber which strengthens their faith and that is how ignorant people gains strength.