Lol this comic's got a story problem that's very evident in the first frame. The words don't match pictures. The white guy is saying "I'm gay", so he's not straddling a line between gay and straight... he should be on the right side of the field, the gay troon side. From there, none of the resultant actions make sense either, because if white bro was on the reddish/orange/gay side of the field, he wouldn't be in shoving range of his oddly genderless mom and dad, and so wouldn't need to trust fall into the hands of gaybro... and then the punch line wouldn't land.
Alright I'll bite and play Devil's Advocate.
The line represents adolescence. The kid spends some time at home and some time in groomer territory. The kid is confused. He sees gay kids at school and they get all sorts of special attention: They get to be massively flamboyant and openly weird, they have an easily identified friend group, and
most importantly, if anyone gives them shit the school administration bends over backwards to protect them. The kid may be genuinely gay or merely interested in being part of this culture. The second are prime grooming targets but in argumentation often only the first are used. (This is known as a Motte and Bailey argument.)
The kid, wanting to establish his identity, makes an announcement. Parents, knowing about the dangers of faggotry, vehemently oppose this. Arguments ensue (the shove) Now here is where a lot of friction happens: The groomers warn the child that they will get pushback. They frame it as the parents betraying their own child. In this way the child is prepared and inoculated for the ensuing argument. It goes exactly how the groomers said it would, which makes them seem wise and more trustworthy. (The catch)
The parents probably are struggling with a dozen other problems. They don't have the education to adequately explain the dangers of faggotry or the time to go over it with their child. A lot of aspects of parenting are taken for granted; it takes a village to raise a child. They don't have tight knit group to coach them on these matters. This gives the groomers a massive advantage. This makes the parents look mean and unsupportive. Again, this further reinforces the catch and makes the groomers look kind and trustworthy.
Some visuals of the comic are lacking because this is an appropriated right-wing comic after all. They love corrupting the work of others. Unlike most left-wing edits, this communicates the point without a billion words. As a whole, the comic makes sense and is coherent, but it only tells one side of the story.