Removal of all prejudice:-

“The fifth Baha’i principle is that sexual prejudice, religious prejudice, spiritual prejudice, national prejudice, and political prejudice are the destroyers of human foundations and any form of prejudice ruins the basis of humankind. Not until these prejudices are removed, will the human world attain tranquility. The proof for [this claim] is that all wars and battles and all enmities and hatreds which have occurred amongst humans were either the result of national prejudice or the result of political prejudice. The human world has not seen peace for
6000 years and the reason for this lack of peace is these prejudices.Until there is prejudice, there will be war, there will be hatred, there will be enmity, and there will be inconvenience. If the human world is to attain comfort, we must dump all these prejudices or else
tranquility will be impossible.

Ref:- `Abdu’l-Bahā, Khaṭābāt (Tehran), vol. 2, pp. 147–148.

So, according to bahais any sort of prejudice is not correct but Now let us see whether the Founders of Baha’ism Refrain From Prejudice?

Some of the most extreme and most violent prejudice and zeal in Baha’i
history can be found in the laws and actions of the Bāb as follows :-

They have ordered to destroy all non-Bābī books.

Ref : The Bāb, Farsi Bayān: “Chapter six of the sixth unit”.

Their order to destroy all monuments.

Ref : `Abdu’l-Bahā, Makātīb (Egypt: 1330 AH), vol. 2, p. 266.

The order to exile or massacre all non-Bābī people.

Ref : The Bāb, Farsi Bayān: “The sixteenth chapter of the seventh”.

Prohibition of teaching any book but those that the Bāb had
revealed.

Ref : `Abdu’l-Bahā, Makātīb (Egypt: 1330 AH), vol. 2, p. 266.

The order to confiscate the wealth of non-Bābīs.

Ref :- The Bāb, Farsi Bayan: “The fifth chapter of the fifth unit”

When `Abdu’l-Bahā speaks about setting aside religious prejudice, he only addresses non-Baha’is. Why have Baha’is been excluded from this order? Why shouldn’t they
too put aside prejudice? Why don’t Baha’is practice what they preach?
Why does `Abdu’l-Bahā state that words need actions but his own
words remain only as words.

Now let us see baha’is attitude toward deniers of their faith:——

Baha’i corpus is filled with sentences about the need to put aside all
prejudice but when it concerns Baha’ism directly, this is no longer the case and a
very disturbing prejudice can be seen in Bahā’u’llāh’s orders:
He has said : “We must avoid deniers in all affairs and must not become
fond of them or sit and converse with them even for a moment, for by God the [effect of] evil individuals on pure individuals is like fire on dry wood and heat on cold snow”.
`Abd al-Ḥamīd Ishrāq Khāwarī, Mā’idiy-i āsimānī, vol. 8, page. 39.

According to Bahā’u’llāh non-Baha’is are animals:

Bahaullah has said :-

"Today, according to the decree of the Point of Bayān
(meaning the Bāb), those individuals who turn away from this
Novel Affair (meaning Baha’ism) are deprived of the garb of
being called and described [as humans?] and are assembled
and mentioned as animals in the presence of God.".
Bahā’u’llāh, Badī`, page 21

In the Baha’i creed, religious prejudice has really been abolished, and
all people, regardless of their religion have equal rights, then why are
non-Baha’is deprived of their share of inheritance from their deceased
parents? And why does `Abdu’l-Bahā insist that there are equality of
rights:

The conclusion of the above discussions can be drawn as follows :-

1) The extreme form of removing all kinds of prejudice brought forward by
Bahā’u’llāh is novel to an extent but nevertheless incorrect and
unacceptable.

2) There are numerous documented instances where Baha’i leaders have
expressed, religious, racial, and sexual prejudice. This shows that those
who created this principle didn’t adhere to it themselves.

3) No rational person will accept that all kinds of prejudice and zeal must
be removed. In other religions such as Islam, this fact has been
explained by pointing out that having prejudice on what is right and
favourable is not only good but also defendable.