Last night, the One Nation Leader claimed Australia is being "swamped by Muslims", 20 years after issuing the same warning about Asians.
There has been widespread dissent among Australia's Muslim communities after the speech.
The One Nation Leader, upon her return to Parliament, claimed that if Muslim migration isn't halted, then Australians will find themselves "living under Sharia law".
Community advocate Bilal Rauf, from the Muslim Legal Network, believes her rhetorical style mirrors the propaganda delivered by IS and other militant groups.
"When we really crystalise it and boil it down, what emerges is that her narrative, her approach - this binary approach of us and them - in fact isn't any different to your IS's or your other extremist groups that want to pitch the world in two camps: 'either you're with us, or against us'. There is no intelligent, considered, realistic discussion of these issues. It comes down to black and white and a binary approach."
Maha Abdo, from the Muslim Women's Association, says she was extremely upset by Ms Hanson's speech.
She describes the One Nation senator's use of the word "swamped" as "appalling".
"Honestly and sincerely I feel so sorry for her. My heart was aching to actually just read some of the words that she's said because I have to admit I could not listen to a lot of the words that were coming out of her mouth. I think it's more than just dividing, I think it's creating a space of fear, more fear, and heightened anxiety across the community. Not just within the Muslim community, but I think in mainstream Australia."
Ms Abdo believes while Pauline Hanson claims to be open to a conversation with Muslim leaders, her actions and words suggest otherwise.
"She's cutting us all off. She's blocking our invitations to sit and talk, and she seems not to be interested in talking to Australian Muslims. So I think once she sits and listens then she'll able to sort of be a lot more informed. She needs to really be more clear about what she really wants to know about Muslims; what it is that she's not comfortable with. It's okay, you know, we don't all have to be comfortable with everything. But I think respect is vital to living in a socially cohesive society."
Senators from the Greens Party walked out of the Senate midway through Pauline Hanson's speech in protest.
Greens Leader Richard Di Natale believes there is no place in 21st century Australia for such comments.
"Imagine being a young Muslim, listening to those comments and how you'd feel hearing people who share your faith being targeted in that way. We need to take a stand against this sort of language."
But Independent Senator David Leyonhjelm has criticised the Greens' walk-out, arguing that Pauline Hanson has a legitimate place in the Senate.
"Her voice is entitled to be heard. What the Greens did, walking out on her, during her first speech was ... well let me count the '..ists': sexist, bigoted, in opposition to diversity of opinion. They didn't walk out on Malcolm Roberts, who said much the same things in his first speech. They walked out on a woman."
Bilal Rauf says he believes the majority of Australians will not be swayed by Pauline Hanson's comments.
He wants positive dialogue to be maintained, so as not to let what he calls "ignorance" prevail.
"Clearly there's a segment of people out there who have a level of concern, and I think that's why it highlights the imporance of the positive dialogue and engaging in these discussions. That's something that needs to occur irrespective of anything else, and particularly given our multicultural society it's very important that we build those bridges and seek to understand and develop common objectives which are important to our wellbeing."
