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That some people are "confused" by science doesn't seem like a very good reason to abandon or corrupt the whole field and the principles which undergird it ...
But not at all sure what you mean by "say what we mean". What reputable biologists mean by "male" and "female" is really no more than "has functional testicles" and "has functional ovaries". That is it -- period:
Too many so-called biologists and philosophers -- like Colin Wright and Alex Byrne, grifters and scientific illiterates, at best, if the truth be known -- are busily engaged in corrupting those definitions for fun and profit. More a part of the problem than of the solution.
But none of those standard biological definitions say anything at all about Kurilova's "men and women have behavioral, emotional, and psychological differences on average as well." And for the very good reason that those differences come in under the heading of gender. That's the benefit of the SCIENCE behind the sex-gender dichotomy: keeping separate the reproductive traits that are "essential" to qualify as male or female, and those psychological traits that are typical of each sex even though they're not necessarily unique to either.