Dogma is the established belief or doctrine held by a religion, ideology or any kind of organization: it is authoritative and not to be disputed, doubted or diverged from.
Dogmas can be found in many religions such as Christianity, Islam, and Judaism, where they are considered core principles that must be upheld by all followers of that religion.
The term "dogmatic" is often used disparagingly to refer to any belief that is held stubbornly and without evidence. It is sometimes applied to political beliefs or even anti-religious beliefs.
Christianity has a field of endeavour called Dogmatic Theology, which investigates and illuminates the central truths of Christianity, sine-qua-non, (which-without-not). Moral Theology is sometimes presented in dogmatic terms, also.
When the catholic dogma of the Assumption of Mary was proclaimed by the Pope in 1954, the UK newspapers all had headlines like, ha, ha, they now have to believe this. That was because the Pope at that time made this a binding article of faith for all Catholics. It was proclaimed as an infallible statement by the Pope (another dogma, that of Papal Infallibility...)
Back to Mary and her Assumption, the matter symbolically or figuratively referred to Mary as Theotokos, Mother of God, something that was critical and hammered out and finalised as a doctrine many centuries ago. Mary as Theotokos is the divinisation of Mary and elevation of her to a sacred status. The pope was concerned to point out that her sacred character was such that God would not allow this body to decay. Hence, the infallible statmenet of this dogma.
It is not so important, nor contentious in these days of ecumenism and interfaith activities; many other religions now accept that the divine is beyond human categories, and is being; being does not reflect neither sex nor gender, and does not need such distinctions at all.
Being is beyond physical characteristics, for example. Being is essentially a matter of consciousness or awareness. Being as such might be called the spiritual component in everything. In which case, the being called God is simply spirit, and spirit does not have gender.