Countrys borders ar not split rentals wtf.
Also you pretending this all happens, without any reason is a bit uninformt and reduktive.
China is realy known for there peacefull annexing of neighboring Countrys.
Coincidentaly they start doing this right after u invaded the dowstaires neigbor send him and his wife to a concentration camp and his child to a reducation centre. You have not being hoarding guns but started a full manufactoring facility. You have also developed a ICBM. You also claim that the entire rental is righfully yours and will not acknowlege the upstairs neighbors as a legitimate unless they pledge allegence to you and become your puppet.
Then you get online and try bully people into saying that ur neighbor is the bad guy.