No, it's a rumour that's been
greatly blown out of proportion, that shit only happens if you live in a rural area, out in the Aussie countryside, and most of us (the population overall, not just Somalis) live in the metropolitan cities of Sydney, Brisbane, Melbourne, Perth, Adelaide etc.
In actuality, the two biggest cities where most Somalis live (Sydney and Melbourne) have been ranked in the top 10 most livable cities in the world in 2023 at places 3 and 4, and consistenly been ranked highly, Melbourne being number 1 several times before the pandemic hit.
It takes into account many factors, including hygiene and infrastructure, so if we had animals/insects popping out everywhere we'd be far from highly favoured in the Western world.
en.wikipedia.org