Mahathir hates SG.
But inadvertently, through his own selfishness, Mahathir did SAVE Singapore by canceling the SG-KL HSR.
Otherwise SG would be in deep trouble.
A small country bankrolling a giant neighbor's mega infrastructure project.
98% of the track lies within Malaysia. If they like HSR to much, they can build the JB-KL HSR for themselves.
No need to DIE DIE insist that SG be dragged into their mega project.
Not that many SGreans travel regularly from SG to KL.
Those who do (maybe 0.0000000000000001% of population) are big shot Director level, to do business.
They can afford to FLY to and fro on Company account.
Ask yourself - how many times in the last 10 years you went from SG to KL?
And even if you could do so very often. Why would you want to keep touring KL?
When you can go to Thailand, Vietnam, Japan, Korea, etc...