My old father would have said that anyone trying to be rational, flexible and understanding of other views was 'wishy-washy' and 'lacking in moral fibre'. He would have exploded with rage at all the PC stuff flying about nowadays. Making him in a sense an extremist...

I also remember the early days of modern feminism. We women were seen as extremists, challenging the very fibre of paternalistic society.
Now (so my very feminist sister tells me) feminists are turning against each other and forming factions, especially with regard to the LGBT and transgender debates. I thought burning my bra was extremely extreme, but it seems not...