If the people wish to repeal that law, then they should vote for representatives that will repeal this.
Draft Dodging is unethical.
A draft is a core part of the social contract in plenty of countries, and those who try to evade it are viewed as "freeloading" by the majority.
Try draft dodging in Singapore, Israel, or Ukraine as well and see what happens.
For me what seems deeply unethical is that some crooked old politicians/military are able to force young people to kill each other in wars the later had no part in starting.
In countries where drafts are thing, they are a part of the social contract.
Rejecting the social contract means rejecting the primacy of that society.
Furthermore, most countries that retain a draft have active security threats or are in frozen conflicts that can re-ignite at a moment's notice.
By dodging the draft you are essentially freeloading off of the rest of society who did get drafted.
The problem I have is with selective enforcement of such social contracts.
In case of the conflict, none of the rich or important people and their kids will be on the front line or even take part in the draft, they'll be chilling in US, UK, New Zeeland, Switzerland, Austria, South of Europe, etc, and yet I and every other Joe Schmoe have to go and die or suffer to fulfil my so called "social contract"? They can eat shit.
Go to any fancy town in Europe and it's full of the Russian and Ukrainian elites living the good life while the poor people in their countries suffer. It was the same in WW1. All of the European plebs were dying in the trenches while Monaco hosted the hottest party and gambling scene of the European monarchies and elites. Go visit Monaco and see for yourself the history.
So until I see the rich people dying in the trenches with the poor, the social contract is a scam and I'll do everything in my power to avoid it since that's what the rich and powerful have always done as that's how they've become rich and powerful in the first place, they never followed the herd.
Social contracts are for gullible people to get scammed easier by the ruling class.
You chill out in Western Europe as a refugee till everything blows over. At least for those from Ukraine.
"you can't be neutral on a moving train"
While I’m unsure of Singapore’s current situation, I know there was a sizable amount of able-bodied men in both Israel and Ukraine who had left, and an underground railroad of sorts sprouted up to help them. To me, that sounds like the ethics of their society are clashing with the geopolitically-driven laws their governments erected.