Gender is the social and cultural way you present, sex is the biological side of things
Yes, gender is society's expectations of how men and women should dress, behave, what they should like etc. Those expectations are bullshit and have nothing to do with male and female, so there should be no conflating of sex and gender, and it certainly shouldn't be the case that males with a 'female gender identity' are gaining access to women's spaces and provisions.
But even then there is a whole host of different ways your sex can present, eg. Chromosome differences, intersex.
Intersex conditions are disorders of sexual development and have absolutely nothing to so with transgenderism. People with these conditions have been appropriated to prop up an argument that biological sex is 'a spectrum' and that there isnt really such a thing as male and female, an argument used mainly by males who appear to not want females to been seen as a distinct class, have their own separate rights and single sex provision.
Transgender people have been around for a very long time, and it's incredibly disheartening to see fellow LGB people shit on trans people when they were at the forefront of the civil rights movement.
There are plenty of gay and lesbian people who were at the forefront of the gay rights movement who say that this is not true.
All this talk just hearkens back to the gay panic and think of the children bullshit from history. Children don't magically believe they are trans because someone told them trans people exist.
If you are gay, you are gay, if you are straight you are straight. You like what you like. If you are straight, then learning about homosexuality and being brought up knowing that gay people exist isn't going to turn you gay, because you can't help what you like. However, if you have been brought up to think that some people are born in the wrong body and that if you are a boy who likes pink and glitter then there might be something 'wrong' with you, that needs 'correcting' then when, somewhere along the way, you find yourself into something that society says is part of the 'girl gender identity' then yes, you may well think you are trans, may well think you need 'correcting' in order to be your true self. The two are not comparable and I think one of the cleverest things that trans ideology ever did was to tack onto LGB because it means that people, as they have done on this thread, can use the 'this is just like the homophobia of yore' argument. The gay rights movement never said that children need to be put on lifelong medical pathways before they have even hit puberty, never said that single sex exemptions needed to be removed from the Equality Act, never said that believing in biological sex was bigotry.
I trust doctors and health care professionals and value their opinions a lot more than random strangers on the Internet.
Well the court cases for these medical professionals are starting to come in thick and fast now.
And as other posters raised the whole bathroom stuff is dumb as hell, do you really think a cis man is going to give a shit about a bathroom sign if he wants to assault a woman?
Ah yes, the old 'look ladies men are gonna rape you anyway so we might as well just make all spaces mixed sex and if you don't like it then tough shit' argument. Bingo!