Why so few Singapore flags flying for National Day?

Some people, especially the old and patriotic Singaporeans, are lamenting why so few flags are seen on the flats? It used to be nearly the whole block of flats flying the Singapore flags. Now it is like you can count them on your finger tips. 

Let me explain this phenomenon by arithmetic. First point, not too long ago, the majority of the population was Singaporeans. Then you have the element of being a closed knit society of One People, One Nation and One Singapore. Practically everyone will be flying the flag. 

What does the number says today? 40% are foreigners. That is 2 foreigners to 3 Singaporeans. By this you can at best get 3 flags flying from every 5 units. But actually if you include the new citizens who are still fresh and not really one of us, you are talking about 50% are Singaporeans and 50% new citizens cum foreigners. This will mean that for every two units, only one will fly the flag at best. So at best, only 50% of the flats will be flying the flag. 

But of the 50%, 30% are hard core anti PAP which will translate to no flag flying. This will reduce the number of flags flying from 50% in a block of flats to 35% at best. The 30% hard core supporters of the PAP/Govt will mean only 15% of the flats would fly the flag. Thus, for every 100 units, 15 units will be flying the flag(from the hard core supporters) and at best 35 units if all the swing voters are included, the grey area of 40% neither pro or anti PAP. If half of this group will to fly the flag, it will mean 15 + 10 or at best 25 flags will be flying for every 100 units. 

And if you take away some from these 25 units due to forgetfulness, angry because of summons/fines, or not happy with MPs, or jobless, or for whatever real or unreal reasons, the number of flags flying could be less than 20 for every 100 units of flags.