Political parties, like other groups, tend to contain people with a wide range of views.
How much of this range is expressed openly depends on the liberality and tolerance within the group, and their respect for freedom of opinion and speech.
In my view.the Liberal Party tends to be more tolerant of divergent opinion than say the ALP which is much more committed to an
apparent united position in the eyes of the voters.
[ At least immediately before elections.

]
Whether or not a statement is "Racist" depends on its content and intent, and on whether what is said is true.
It is easy for opponents of any idea to bandy about such terms to divert focus from the idea that is being expressed, and bury any serious consideration of it in the resulting controversy.
Accusations of "Blasphemy" used to work much the same way accusations of "Racism" do now..That said I am sure there would be some genuine "racists" hidden in the Liberal Party, and within other political parties and groups too.
Political parties do attract people who want to exercise power because they have an agenda to push.
That's why I sometimes argue, from the Devil's Advocate" position I like to take, that we would be better served in government if anyone who actually wanted to be an MP were banned from becoming one.
Racists, wherever they are, do bother me, but suppressing the expression of ideas and opinion bothers me more.
Expressed opinions can be tolerated and ignored, suppressing ideas and opinions is dangerous to democracy.