Were the 1960s fundamentally constructive or fundamentally destructive? give at least three reasons for your answer.

I think its destructive and constructive at the same time. Change may not happen in an instant. It will require a collective effort, like the youth rebellion against racial discrimination. It caught the attention of the world from a destructive sense of replacing the old repressive stigma of racial discrimination to a constructive acknowledgment of equality regardless of race.

The call for peace on the Vietnam war happened when Americans realized that deaths of their soldiers were results of baseless disputes of their leaders. It also affected the whole economy and well-being of Vietnam people. From a destructive result came a constructive acceptance of the implications of war.

The counterculture movements were also popular during those times. It responded and called for change through different forms of action using nonviolent means. The aim is to raise progressive ideals based on social issues, destroying the old culture of conformity and replacing it with a culture in favor of the people. 

They said that the world was flat

Sir thomas more, venerated in the catholic church as saint thomas more, was an english lawyer, social philosopher, author, statesman, and noted renaissance humanist. he was also a councillor to henry viii, and lord high chancellor of england from october 1529 to 16 may 1532. i found this information on wikipedia