[edblarney]

"It's not easy to defend yourself against sexist accusations, except that I have proof that I'm an activist and I've rallied for women rights and LGBT rights."

You do not need to show any 'credentials'. It doesn't matter what things you 'belong to'. You don't need to cower in defence such accusations or 'prove that you're not' something. If in all your self-awareness, you know you're not sexist, well then - you're surely not. The accusations are unfair and baseless.

More extreme: imagine someone accuses you of being a pedophile - you don't react by saying 'how much you love children and would never do such a thing'. Heyzeus! Just act with firm integrity and dismiss the accusation outright and make sure it's known that the accusations are unfair and baseless.

[amag]

> If in all your self-awareness, you know you're not sexist, well then - you're surely not

At least not intentionally. You must still be aware that we all have subconscious biases which can sometimes make you act or say something that can be interpreted as sexist by another party. Maybe a female coworker feels that you are mansplaining things to her but not to your male coworkers?