If you somehow accidentally invited an abusive person to dinner and they started acting abusive you would ask them to leave. Then when they don't leave you call the police. Really a stretch to imagine that happening more than once a lifetime.
In video calls you don't even have to do that, you can just kick them from the call. You don't need Zoom to step in you just kick them.
I really don't understand what you are getting at with the abusive people thing. What sort of situation are you imagining exactly?
Phishing is already handled by email. Don't click the zoom meeting link in the email from a Nigerian Prince and you will be fine. In general I don't see this being a problem with Zoom but rather a problem with clicking links from dodgy sources, zoom meeting links just happen to be one of many.
If there are others please list them because I'm struggling to understand the overarching thing you are getting at and examples would help with that.
In video calls you don't even have to do that, you can just kick them from the call. You don't need Zoom to step in you just kick them.
I really don't understand what you are getting at with the abusive people thing. What sort of situation are you imagining exactly?