Gender dysphoria is an observable psychological condition that has existed throughout history. It is not an "ideology," as it is not a belief system, and comparing it with a religion, Christian or otherwise, is totally absurd. Moreover, just mentioning that this condition exists among humans is not "championing" it. Also, there are several different usages of the word "feel" in English. Context is important. It can be used to describe momentary experiences, like feeling sad, cold, hungry, spiritually inspired, afraid. It also can be used to more permanent on-going psychological experiences and things that one has always known about one's inner self. Every one of us has an inner self that probably is something that we are born with. Put a few four-year-olds in a toy store and tell them that they can play with anything they want, without any interference from an adult, and watch what each gravitates toward.
Writing about gender issues is difficult in general due to the danger of becoming ensnared by cultural norms that enforce stereotypes that have nothing to do with the individual.
Writing about Christianity is also difficult due to the fact that it is a generic term that does not account for the fact that there are many different groups of Christians with widely varying beliefs. Some groups reject people who have gender dysphoria and others don't reject people on this or any other ground. Sadly, what has been long ignored is the personal spiritual beliefs of the transgendered and others who are the subject of these controversies.
This is one of the most bizarre threads I've seen on USMB.