Any one regardless of what country they originally came from who stays on in a country after there vice expires is not only a disgrace to there country but are behaving in a selfish manner to there fellow country men.
I have tried several times to get a visitors visa for my Gambian friends (I have even been to the British Consoled with them) but each time they have been refused on the grounds that my friends may not return to The Gambia.
Perhaps it is hard for the authorities to track over stayers down this does not mean they don’t know that people are staying hear illegally.
As has been pointed out by others over stayers will be open to exploitation from employers, have trouble with housing, healthcare etc. That is unless you have been ‘lucky enough’ to con some unsuspecting tourist out of there life savings to giving you money to stay. All this is the over stayers problem but as I have already said what infuriates me most about these selfish, illegal immigrants is the knock on affect it has on in this case Gambians. Every where you go you see Gambian raster men great each other with the words ‘respect man‘. Well don’t just say ‘respect’, live respect by doing the right thing and not over staying your visa.