True,we cant just blame CN alone, its our fault when abandoned CN and ally wt Soviet, but we need to unify Sub Mekong region while Deng tried his best to stop it in 1979 by joining US's side to slap sanction on VN and supporting Pol Pot against VN.
Now, we still need to unify Sub Mekong region to get bigger and stronger, if Xi dont help VN, then it'd better to let CN fall into chaos in 2023 so No one can stop VN to re unify Sub Mekong region.
Pls dont just convice ppl that China will still be there and prosper further by 2023. Take some analyst Dude:
-In military field : PLA-PLAN-PLAF still suck-coward-useless-no real experience in real hard war (in 1979 war, Deng didnt dare to use PLAF cos PLAF pilots suck, no experience and Deng had to beg for Intel from US spy bird instead), so, CN military force will not able to help CN to get some advance against US-UK-JP forces that sailing around CN now and waiting for CN chaos to re take HK-Macau-Nanjing-Islands in SCS(east VN sea) etc
-In economic field: CN economy is falling, stock is falling, jobs are losing, ppl are in panic, many CNese elites saying that Xi is going wrong way etc
Its just 2018 and there have been so many troubles in CN already, so only CN trying to hope that they will survive till 2023 while UK-JP-Cad-Mex etc believe CN will fall and they join US's side and prepare to grab CN lands-islands.
So, seem like u guys need to convince UK-JP-Cad-Mex etc first that CN will not fall, and tell them to join CN's side. Otherwhile, CN lands will be torn aparts like in Qing's time.