One is a dude (MC), but ALL the others i have no idea how you classify as dudes. They have very feminine bodies/faces with giant breasts. There are more things feminine about them than masculine, but i guess your homophobia is (ironically) making you focus on their dicks .So two dudes that look like women is not gay? That's pretty wild
Just because your definition of 'gay' is apparently two people with dicks (regardless of other parts), doesn't mean that's what other people define 'gay' as. I'm guessing you also think any male who likes anal play is also 'gay'. Well it's not. Being gay (or straight/bi etc) only has to do with what gender you find sexually attractive. It has nothing to do with how your body reacts to having certain nerves stimulated.
The only thing that matters is what the tags mean on this site, and here the gay tag is defined to be useful to gay males who are only interested in other males. Being strictly gay I don't find chicks with dicks, or if you want to look at it the other way dudes with breasts, attractive so no I don't think the gay tag should be here.
The whole point of a tag system is to break things down into the most specific themes possible so that people can filter exactly how they want based on their own personal preferences. If someone is looking for something very specific they combine the tags they want together. Having one giant tag that contains many things would only be useful to a handful of people who all like/dislike that exact subset of things.