all these users who downloads like three to seven of the same stuff and the idea they have behind this is that if one AV fails the other will have its back.
Actually, AV's are AV's and AM's are AM's (AM = anti malware ) AV's are designed to pick up virii and AM's are meant to pick up malware... and yes, they essentially have eachothers back for this reason...

BTW, some people will argue that there are AV's that do both, but in my personal experience, they do a poor job...