If the point is that bringing items into Australia could have a negative impact as they are not present (such as cane toads, rabbits, etc) then sure. However,

If the point is that bringing items into Australia could have a negative impact as they are not present (such as cane toads, rabbits, etc) then sure. However, Australia already has much uranium. The mine at Rum Jungle has quite a lot left. Multiple nuclear explosions have taken place there. This is not equivalent to keeping rabies out, nor a cultural issue.