The difference between Chinese and not Chinese is Chinese want to squeeze every peso out in profit not in doing a quality job
Something else they copied from the west no doubt.
Having lived around the world, the "Squeezing every last penny out in profit and not doing a quality job" is everywhere, not just Asia and certainly not solely in The Philippines.
I could give the list of faults and add some to a new build I bought in Swindon UK. Shoddy workmanship is a worldwide problem, to infer it only or always happens in the Philippines is being short sighted in my opinion.