These things are queerphobic:
Claiming, implying or insinuating that there is a conflict between the human rights of the LGBTIQA+ community (or any part of it) and those of any other marginalised group.
So it is queerphobic to argue that there can ever be a conflict between women's rights and the rights of the alphabets or any letters within that group.
Misidentifying neutral terms that describe someone not having an LGBTIQA+ identity as insults, for example: straight, monosexual, cisgender, allosexual, perisex or endosex.
So it is transphobic not to belong to the secular-religious sect of Abstract Gender Identities, because 'cis' only makes sense within that sect as it demands that all who are not transgender or nonbinary still possess an abstract, inner feeling of femininity (if we are women) which is not at all based on being female but just happens to coincide with it. So we are not women because we are female, but because we love skirts and makeup and long hair and so on. I presume male people can't be men because they are male, but because they like beer and football and burping etc.
Using phrases or language to describe trans people which are designed to suggest that trans people are a separate category of person from the gender they identify as or that their gender identity is not valid. Examples include referring to a trans woman or non-binary person as a “biological man” or a trans man or non-binary person as a “biological woman”, which eradicates the trans person’s gender identity and/or knowledge of themselves in favour of their biology assigned at birth.
This means that gender identity must always be prioritised over biological sex and that 'the biology' of person is assigned at birth. The latter is total rubbish, given that our 'biology' is assigned at conception and observed even before birth, but it's more dangerous to privilege a quasi-religious belief about gender identities over material facts.