Is fighting fire with fire an effective strategy?

I hope this is OK to post as injustice, especially hypocrisy, is something that has upset me for a long time and I wonder what others think about it?

I like reading about whisky and I just read an article about a lady who got into whisky tasting. It went on to give some interesting facts, like how even though most people who are very into whisky are men, women are actually better in general at tasting whisky than men. It’s likely an evolutionary thing as they developed a need to be able to tell if food was unsafe before sharing it with children. All nice unbiased facts and stuff

However it then went on to say things like how men in the whisky industry are all sexist, men don’t allow women into the industry, men are always surprised if they come across a woman who enjoys whisky

I don’t know whether the idea of fighting against sexism by being sexist yourself is the right way to go about making the example that sexism is unacceptable?

I have noticed the same thing when it comes to other things like race. Phrases get thrown about along the lines “white people are racist” - by grouping people based on their skin colour (white) and accusing them of something (racism), are you not committing racism yourself?

I agree that these things are wrong - I never actually care if someone does something that society doesn’t expect them to do based on their characteristics, I don’t even mention it because I’m actually more interested in the topic involved, than trying to bring politics into it!

I think what I'm trying to say, is, if I wanted to stand up for a group of people: I would probably do that by defending/praising that group, rather than attacking an "opposite" group

But trying to see the other side, maybe I am wrong - perhaps trying to prove the point that something is bad, by committing the very thing that is bad, is an effective way of getting the message across?

I’d be interested to hear peoples thoughts