Marriage is defined by the state, at present 24 countries define marriage as a legal and civil right between two adults. Australia is likely to become the 25th country and others will follow. I have no problem respecting your church to define marriage the way it does just as I have no problem with Islamic countries that allow polygamous marriages.
And now the state in some locations is claiming that individuals have the right to proclaim their gender, or lack thereof, at whatever age and for whatever reason they wish, and no one, not even their parents, can interfere with that right.
It appears that, at least in those locations, the state views itself as omnipotent and omniscient, with the right to determine cosmic reality and to bestow that right upon its subjects – well, for now it is merely usurpation of power over biological reality, but who knows how far it will go when the state deems itself above all reality with absolute control over that reality?
Are you not, at least, a little hesitant and timorous with regard to your complicity with the state in declaring itself to be above God and the natural order?
Put another way, can the state possibly be correct when it claims BOTH 1) that individuals have NO control or any say whatsoever in controlling their sexual urges and attractions and yet, at the same time, 2) that individuals have full control over determining their gender, contrary to all biological facts? The fact that the state can be so irrational and inconsistent ought to throw just a little bit of pause into your willingness to allow the state such all-consuming authority, no?
At bottom this isn’t a battle between the Church and state, although many would like us to believe that. It is a battle of reason and common sense against sheer force of will to power. The fact that profoundly irrational and contradictory claims are being made by the subjects of the state on behalf of the state is an indicator that sound reason and thoughtful consideration are being bound and gagged at the city gate.