As someone relatively neutral to this situation, the only thing that makes me uneasy about this is the effect on his poor kids having a dad who seems allergic to growing up.
As for the actual incident, maybe it's because I'm your average old school hairy arsed site worker still stuck in the early 90s, but I can't see why anyone would be getting all wound up by it to the degree they are. I've got mates way older than him whose knobs I've seen out so often in public spaces I could probably draw them from memory. And most of the time this is from women requesting they do so to back up whatever brag they've just made.
It's all about context for me. If Walker had been filmed wanking in a bus shelter or deliberately showing his pecker to unknown passers by, then it becomes a much more serious threat, but the video is just usual pissed up shenanigans between people who know each other well enough to not be offended by one another. He of course should know better being a well known figure in a public place, but from various things I've heard about him down the years, he's well known for not being able to handle his ale.
I know "the times they are a changing", but this is clearly just hi jinx among friends and a tabloid shit stirring like crazy. I can't remember seeing a single bit of outrage before when some lass whips her spaniels ears out at Glastonbury in front of a crowd of 100,000 including loads of minors. It gets put on the big screen, everyone goes "wheyyyyyyyy" and then proceed to get on with their lives without fuss, arrests or public outcry, and I'd argue that is far worse than some footballer showing his tallywhacker to a couple of drunken baddies in what looks a relatively quiet and uninhabited space.
People comparing him to people like Wayne Couzens need to give their head a proper wobble tbh.