Corbyn's interview a few weeks ago called out vilifying of Trans folk and made clear they should feel safe from discrimination to live their lives.
Yes there is one MP that has slightly different views but still made clear there should be safe spaces. Let's not make perfect be the enemy of good as I don't think any party has every MP with the same view on trans people and all issues close to our heart. I'm pretty confident Your Party will have a progressive view on Trans rights.
Politics is like bus routes. You'll never find anything that goes exactly to your door, so you pick the one that gets you closest so you can walk the rest of the way.