I will be very worried if PAP loses a lot of seats in one
election. Though the likelihood of that happening is almost
impossible. We still need PAP to be in the majority, otherwise
Singapore will suddenly lose its leading position overnight.
However, what is more worrying is when PAP wins everything. When
there is zero opposition in parliament. Basically they can do
whatever they like, don't even have to waste time listening to
small cats meowing and ignoring them. They can then proceed to 'act
on the people's interest' and pass any policy with ease.
That's why I like WP. Unfortunately they are not contesting in
my GRC. But my vote still goes to the OPP. 
Singaporeans need to stand up for ourselves instead of being led
by the noses by these overpaid white people thinking what they do
is what is good for you.