Any way to enable FilteringEnabled with a script?

Every now and then I browse v3rmillion.net for any major things, like FE bypass or explorer scripts and try to patch them in my games.

Recently, I found an FE bypass script that literally just disabled FE, as if someone just unchecked it with a RemoteEvent. I wont post the script here for hopefully obvious reasons, but is there a way to fight against this type of FE bypass?

I tried it with this script inside of the Workspace:

while true do
    wait()
    if script.Parent.FilteringEnabled == false then
        script.Parent.FilteringEnabled = true
    end
end

and I was going to add more than that, like a backup in case someone with an explorer exploit deleted the script, it would just paste it back in. (In case they do disable FE)

But when I tried this method, I got the error "Unable to assign property FilteringEnabled. Script write access is restricted"

Anyway to bypass this?