If Singaporeans did that, the PAP would be/have been out in no
time.
And it is not that the PAP will be replaced by something more
inferior. Another political party (not necessarily Workers' Party)
would have gradually gained strength with the people's votes to
replace the PAP in some constituencies.
If 20 years ago the PAP's monopoly had already been broken,
probably today, who knows some good PAP MPs like Dr Tan CB, Mr Sin
BA, Mr Teo HP and Mr Leong HK would be in another party. Other
non-PAP political watchers like Dr Kwok KW, Dr Tommy Koh and Prof
Chua BH could also be non-PAP MPs of the party as well.
And if it was Workers' Party, Mr Low TK may or may not be SG of the
Party and knowing him, he would be happy in whatever position
within a good, strong team.
Regards