I think pointing out sexism is warranted when it is clearly a form of disrespect that actually belittles the status of the gender. For instance, that 'sexist science shirt' is a form of disrespect. However, being associated with a particular kind of alcohol isn't really disrespect, just more of a cultural/marketing segregation at work. If anything, the majority of non-beer girly drinks are quite potent due to its 'easy to drink' nature and high alcoholic content, and have contributed to the majority of my hangovers, heh.
Lol.