I won't necessarily disagree with you there. Hey, Italien is my second language.
But there are exceptions. Like I know some Portuguese who think Italians are exaggerations of the worst qualities of fellow Portuguese. (Same with the Spaniards too, actually.) Things like being loud, being overly emotive, being mama's boys, etc.
Of course, you could argue that Portuguese are a heavily subdued -- and subservient -- people. 50+ years of a historically recent dictatorship will do that to you. But they do know how to slowly resist.