" I don´t think so, terms like barbar etc. show how high the prestige and self-confidence of the Romans were. "
I think "latin-romance" was seen more valuable mostly in germanic countries (and stills does). After the germanic invasion, it was very fashionable to wear a Germanic name in romance areas, because they were the names of the "upper-class". those names have bee romanized and integrated among the others.
" Germanics like the Franks adopted the Latin language as well as they could in order to get a higher status. "
The huge majority of Franks never adopted the latin language, those who loved in the already germanic speaking areas continued to speak Frankish: their decendants in Netherlands, Flanders and Germany still does speak languages that derive from Frankish: those are the modern Franks.
Only a little part of them (those who were the little ruling class of the Romance-speaking areas that would became later what is now France, Wallonia and Romandia), finally happenned to speak the language of their very populated ruled lands.
" <,Germanics like the Franks adopted the Latin language as well as they could in order to get a higher status. >>
How much higher a status could they have obtained? --they were already running the country :\ . ?? "
Absolutly agree. The only reason what the Frankish ruling class adopted French was because it was largely the spoken language of the whole population, and after the division of the charlemagne's empire in different parts, it quickly became a nececity for the rulers of the western part (the romance speaking one that woul became France) to speak the majoritary language. It was not the case before , when most (and the heart of the empire;aachen) of the ruled lands were the germanic-speaking lands that are now germany, Flanders, the Netherlands and Switzerland.
"Why did people in Nizza and Corsica give up on Italian?"
Because in Nice we (I'm nissart myself) never spoke italian. Nice was traditionally (before the 19th century) being speaking Nissart, which is a langue d'oc dialect (it has Italian influences because Nice county was a Piemontese colony, Italian was the ruling class language at that time, but not the native people's language)
Corsicans traditionally spoke Corsican, which is not Italian, even if it closely related (and still does if they want, they didn't "give up", or at leat are not obliged to do it).
" For example in Monte Carlo and in Istria (Slovenia&Croatia), Italian continues being spoken even tho' these territories are no longer Italian. "
The people who speak Italian in Monaco are... Italians, (rich people from Milan, Bergam, Turin or Rome). Monaco never spoke Italian but monegasque, which was a sort of nissart. Today the official language of Monco is only french, even if Monaco is not french.
" Why is that France has to frenchify everything and turn it into bag of French fries???? "
French fries are belgian, not french.
" 150 years ago you would read Dante in Nizza and Ajaccio and eat pizza, now you are obliged to speak the language of Napoleone Buonaparte "
you can speak the language you want, the fact is the native peoples of nice and Corsica we are french and speak french, and we like to read Dante if they like too. We have, like all french regions, our own culinar specialities.
PS: pizzas did not exist when Nice was definitetely integrated to France.