I once went to an LGBT meeting which had a few trans guys, a few trans women, and a few cis people and we were discussing trans issues, I brought up sports and literally everyone (including the trans people) yelled at me and talked about how trans women do have an advantage and should not participate in women's sports. My therapist who is extremely pro-LGBT and has gotten me through tough times in my life was also against trans women participating in sports, but ended up saying "its okay, we don't have to agree on everything" which made me feel a lil better. I have many online friends who are part of the LGBT community and everybody except the transfems is skeptical or against trans women participating in women's sports, including my best friend too. I've also looked through reddit communities of supportive western-european countries and whenever it came to trans women in women's sports, the most upvoted answers were the anti-trans ones and the most downvoted ones were the pro-trans ones. The only places that seem to support trans women in sports are online transfem echo-chambers, nothing else.