It is not ´careless words´ that caused this. After all, everyone is entitled to express their opinion.

What really caused this is the climate where it is ok for women to meet without the least danger of being accused of sexism. It is the climate where it is ok for blacks to meet without any danger of being accused of racism. It is the climate where it is VERBOTEN for white guys to meet, even if the topic is something totally neutral like Ruby and the attendance is self-selected.