Your confusion will be lessoned somewhat by this.
This means our cells start working using a slightly different sequence of instructions, and the tissue formed from these cells develops differently.
Their brains see our curves, hair, etc etc and it fires off the "oooh, me likey" reaction. Aka attraction.
Furthermore we all have our own individual tastes within those characteristics.
To be more specific, you are keying off the secondary sex characteristics from high estrogen, low testosterone.
As a result, their cells use the same DNA sequences that other women do, because their cells have bound to the hormones present.
Exactly. The. Same.
It undoes the first puberty.
Okay, so here is the crunch...
Okay, so let's go a leeeeetle bit further than you may be comfortable with, (but should be)... what if... what if you... made out with her?
Amazingly, it will be juuuuust like kissing a cis woman... because on a cellular level, you ARE kissing a woman's lips. Let me explain...
You know this.
When new cells rock up to replace them, they key off hormones to set themselves to "male" coded or "female" coded DNA sequences.
So not only are you attracted her because your brain reads her as a woman, she is also made up of "woman stuff"
So, congrats straight dude... you are still straight.
Still got issues? Of course you do, but you have to understand the issues are yours to deal with, not hers. And those issues involve growing up in a toxic environment
This isn't true masculinity, this is toxic masculinity.
That is the basis of a whole mess of struggles you will have to work through, because it is based on the concept that women are less.
This is the root of homophobia.
If you find a transgender woman attractive and like her, it should be okay. Draw that line in the sand with your mates. Make it their problem, not hers.
Who knows, you may find someone who makes your world spin.
You just gotta get the bugbears out of your head.
Science is wonderful, and humans of all types can be too.
Straight people like trans people.
Go forth and enjoy being... yunno... straight and stuff.
I will be over in the lesbian corner reading a book.
Nope... It's off.
The subject is more broad than this, and we can explore more complex issues like attraction to intersex people...
Or the psychology of why straight men get aroused seeing erect penises (It's a competitive mating signal... oh, shit you are ready to go, so I better get ready as we may compete for the same breeding opportunity) which is why straight porn usually has large junk.