Perfectly summed up - Having recently got back to London after four months around Koh Samui and Phuket, certainly saw more masks and bits of PPE rubbish on the sea bed and on beaches than I saw marine life. As you say, time for those with sense to simply stop wearing wearing the things, to make the mandate unenforceable and the peer pressure, less prickly. For whatever reason some Asian 'governments' won't let this idiocy end, it's not for the good health of the poor and the regular citizen.
Good luck Mike