Thoughts?

I've  noticed a lot of girls seem to be  'bicurious', or interested in girls merely sexually, preferring men for relationships in the long run. Do you find this harmful to the bi and lesbian community?
Related, would you date a MTF transgender person, as they identify as female?
What's your thoughts on the spit sec/gender attraction model? (Ex: Homosexual heteromantic, Aromantic heterosexual, etc)
Not meant to infringe on anyone, I fall into many of the groups I listed above, just want to start a discussion in here that goes beyond what I tend to see in here.