What the actual fuck? Did you read the context? Hungary in 1956: they would fear those Russians!
If you aren't an enemy of feminism you have nothing to fear against female founders and can speak to them openly.
I really don't know how to make this any more clear to you, you almost there. And now think an inch further...
Our hypothetical clam doesn't know that the speaker is in the KGB or equivalent. They're stereotyping based on rumours, ethnicity and background. It doesn't matter that they are behaving prudently, it is pretty clear-cut that they are making decisions based on the racial and ethnic stereotypes they know.
I'm the bearer of bad news here. Sometimes racism is a rational response. Strive to make it not so.