So you're saying she beats Zoro and Sanji? No way. She isn't in their league. Besides,she was only called a demon because she was an archaeologist from Ohara studying the void century and the WG labelled her that. It had nothing to do with her powers and also,as she's growing stronger,you don't expect the others to stagnate
But what besides your "leagues" is stopping her from instantly clutching them disarming them and then strangling them?
Observation haki? Even if they can see it they cant dodge something growing out of them. Enel displayed against luffy that observation haki can be helpful but is useless if its not avoidable
Blitz her? Pell and habaku tried it and no matter how fast speed and power mean nothing to her. Everyone who tried to blitz got caught.
long range attacks? She was the only one able to catch the south bird who did just that. So even if you stay back point blank period
If she can see you she can catch you. If she can catch you she can kill you.
What makes sanji and zoro different