I am confused 18M

It’s weird I have only ever irl dated girls but over online I have dated dudes, trans men, nonbinary and I am currently about to go out with a genderfluid person but my thing is I wouldn’t call myself bi bc I’m not attracted to dicks I’m just not it’s the only reason I wouldn’t be with a biological man I dated one briefly Online and I couldn’t find them attractive. What sexuality even is it to only like one sex organ and not the other