1.Mindless yobs simply destroyed more than 100 years of history and trashed countless other small family businesses in this area for no good reason whatsoever.

那些沒(méi)腦子的小無(wú)賴們毀了一個(gè)有100多年歷史的古建筑，并無(wú)緣無(wú)故地破壞了本地區(qū)無(wú)數(shù)的小家族生意。

2.Mindless yobs simply destroyed more than 100 years of history and trashed countless other small family businesses in this area for no good reason whatsoever.

那些沒(méi)腦子的小無(wú)賴們毀了一個(gè)有100多年歷史的古建筑，并無(wú)緣無(wú)故地破壞了本地區(qū)無(wú)數(shù)的小家族生意。

3.How about "In America we trust" or "At least we're not French", or "Land of yobs(1) and morons(2)".

這幾個(gè)怎么樣：“我們信任美國(guó)”，“至少我們不是法國(guó)人”或者“無(wú)賴和笨蛋之都”。