I'm not saying it's a clear conclusion that Google has a monopoly that must be regulated/broken-up. I'm saying that it's not conclusive. The case is strong enough to seriously consider and to evaluate. I think the duopoly of iOS/Android is probably the most serious issue, even more than search. But none of this is simple cut-and-dry.
So for search they are not a monopoly, not even close.
For iOS/Android, I'm not seeing a problem just because they are popular. Is there some specific legislation you would like passed which would interfere and most likely overreach into their companies?
Like you said, it's not cut and dry because there isn't a monopoly. If an upstart company came along and wanted to make a new mobileOS, I wish them well. If Google or Apple did something wrong to interfere with their success, bring a suit at that time with specific claims.
