Thanks to (relatively) recent developments, there is not a shared, objective definition to what it means to be "trans". Rather, it is an umbrella term that anyone can simply apply to themselves any day or any time they choose. This is, by the way, a sharp departure from the past and conflicts with the medical model.
By allowing an anything goes, self-defining cultural climate, there has been a seismic shift in terms of who is going to say they are trans.
If, as it had been the case, identifying as trans meant you had had the full medical 'transition' procedure, then only those who had gone through such extensive reassignment would identify as "trans".
If, also how it had been, identifying as trans meant you would be subjected to extensive medical and psychological evaluation, criterion, it would again refer to a certain, rare, subgroup of of people who are "trans".
However, the doctrine of today says 'those who say they are trans shall be respected as trans and shall not be questioned and shall wear whatever they want and use whatever restroom they want and use whatever pronoun they want even if that means identifying as a cat and peeing in a litter box and no one can say anything about any of it'.
To be sure, there are many who are medically trans who just go along with their lives and try to live it the best they can. There are many people who are genuinely confused, maybe on behalf of being abused. There are people with genuine mental health issues who need to be in counseling, on medication, etc. All of this may make some people uncomfortable, but there really is not much risk of these people hurting others.
The dark side of the anything goes / anyone defines mentality is that now you have given all of the sickos a perfect cover. I take it that there are simply sick, predatorial people (almost always males) who will taken advantage of any opportunity to prey on women and / or children. In the past they would NOT have gone along with the 'trans' label because they do not want sterilization, estrogen and probably do not even enjoy crossdressing. However, society has made trans culture so fluid that these people feel emboldened to engage more openly in their perversions (and, if caught, request placement in a women's prison).