Complex sentence: These kinds of arguments are considered by many to be inappropriate and offensive, because they suggest that coming out as trans is an arbitrary or irrational decision, when it fact it is a deeply personal decision--a statement of one's identity.
Split into simpler sentences: These kinds of arguments are considered by many to be inappropriate and offensive, because they suggest that coming out as trans is an arbitrary or irrational decision. It is a deeply personal decision--a statement of one's identity.