@CheeseMmmm the illegal homosexuality law is only on the books, it is never enforced. Legacy of colonial law and now can't be taken off cos of the evangelical Christian zealots. There is pink dot in Singapore which is like pride but more family friendly every year. Wouldn't be that if that law was enforced.
Our foreign workers are not illegal. There is actually very little illegal immigration in Singapore due to strict border controls. My dad owns commercial property in Singapore and he once told me he always checks who his tenants are and who their employees are from (illegals would tend to stay at their workplace) cos he can be jailed if found harbouring illegal immigrants.
They are an important part of Singapore and they live in dorms. Dorm conditions could be improved and they are trying to improve them. Like the ancestors of most 'native' singaporeans, they remit all their money home.
It isn't a two tier system, it's based on subsides and insurance and mandatory health savings. In fact, some Singaporeans even think foreigners have more advantages as employers legally have to pay 17% into CPF (mandatory savings account for pension, property and healthcare), in addition to employee 20% contribution. For good jobs for good employers this isn't an issue, it's worth it to get a good local candidate and of course this is like free money for the employee. But for bad jobs? Stingy employers rather hire the young foreign worker who doesn't need these additional contributions; hence why some 40 year old professionals are now Grab drivers (grab is Singapore version of Uber).