Existing botnet malware already protects itself against removal or interference from other malware and anti-virus software. And it usually has auto-update funct

Existing botnet malware already protects itself against removal or interference from other malware and anti-virus software. And it usually has auto-update functionality. It would just be extended to defend against this new "anti-malware" as well. Besides, if this hypothetical "anti-malware" actually incapacitated machines, it would be highly illegal itself.