How do I turn off a security web proxy on my iPhone? or Can someone help me turn off a security web p

If it’s grayed out, it’s 100% a MDM (Mobile Device Management) thing. Your company or school controls it.

You could try using a different Wi-Fi network or cellular data to bypass it temporarily, but to fully turn off a security web proxy on your iPhone, you’ll need admin access.

Btw, if you’re curious, Apple’s support page has more on this: [link].