You (generally speaking) cannot get infected with STIs, pregnant, assaulted, raped, drugged, stabbed, murdered, convicted, jailed - for being a camgirl. You (generally speaking) can use the banking system, report that income, pay taxes on it, etc. You don't need to seek "camgirl friendly" medical professionals. Etc, etc.
I knew someone who called herself a sex worker because she posed for some fetish clothing store photos and did some fetish site photo shoots (it was a fetish involving certain items. No interaction, much less sexual, with other models/actresses. Nothing went into anyone's orifices.)
You might technically kinda almost be right when you squint really hard and aren't wearing your glasses in a dark room and you've had a few shots. But you're assigning/claiming a label to grant/be viewed as oppressed/lower-privileged while not actually suffering from oppression or lower privilege.
Camgirls - and models - calling themselves "sex workers" is like calling yourself black when you had a great-grandfather who was black.