Overstayers are being employed in this country by corrupt employers. as long as that continues overstaying will be rife. England has a gigantic overstay problem as well.
Overstay is effecting everybody in this country.

579,
"Overstayers are a problem"?

How come, most overstayers are simply tourists who decide to see a bit more of Aus or have under estimated the time it takes to see what they want. Most only stay an extra week or so and pay their way. It is good for the tourist industry. Generally no penalties are imposed.

Long term overstayers are not that many as they would need to arrange false identity documents. I do not know how or who does that, do you?

More info please.

the main reason so called overstayers are employed is because wages and conditions are becoming unaffordable to small business, our largest employers. In fact, if all SB paid the correct amount in wages and conditions many would simply fold.

This demand for cutting wages is driven by consumers unwillingness to pay the price for such generous conditions such as ridiculous penalty rates in certain sector, as consumers have demanded the seven day society but are reluctant to pay for the privilege.

According to the Adelaide Advertiser, The Age,
The Herald Sun, the Sydney Morning Herald, the
Courier Mail, Wikipedia and the Immigration Department
report, "Migration Trends 2012-2013" there at the last
count over 62,000 illegals in this country. This is not
a furphy - and even though some posters like Banjo
don't believe that - the facts don't change that there
are 13 times more illegal immigrants then there are
asylum seekers in detention. Peter Dutton is determined
to crack down on them. The problem exists and no amount
of denial or narrow-mindedness is going to change that.
We've been through this all before. Mr Abbott may have
stopped the boats - they come by plane instead. And by
boat they're going to Europe.

"Should children of illegal immigrants be entitled to a public education?"

Yes...

and in Australia they get it. Next problem please.

I would be greatly surprised if there was no penalty for overstay. It is illegal and you will find there is a daily amount to be paid for overstay.
Employers are not exempt in overstay, cash and no tax. What do they need ID for.
To say they like the place and just spend more money is somewhat nieve.
If they stay long enough and go out broke the taxpayer pays their deportation, with a stamp to say don,t come back.