Edit: Clarification, since so many of the smaller uninhabited islands have been claimed by the UK, US, and other Western nations, how is it wrong to build some uninhabited islands of your own?
Creating an island out of thin air and then claiming the territory around it is 1 step short of Sealand.
That said no we aren't perfect and we did stuff like this as well but two wrongs in this case don't make a right, this is nothing but a very destabilising move.
If you hold that no past behaviour is considered expired then pretty much every country on the planet or the people who live there before it was that country is responsible for something.
African tribes have warred for millenia, European tribes have warred for millenia, South America, Middle East, Far East pretty much everyone has at some point beaten up their neighbours and not so near neighbours.
Execute massive land grab first to get strategic high ground, and then bitflip your previous moves to be wrong for anyone else to do. That makes sure that anyone else trying to catch up to you is unable to do so. Boom. Barriers to entry. Done.
However the world has moved on, that it moved on at a time when the West was dominant (for now) wasn't planned it was just how it was.
If your definition of "the world" excludes the words largest country by territory and the largest country by population.
It would seem more fitting to instead say "the West has moved on".