It really is wild how people who don't understand what consent is really do not understand what consent is. The idea that they're supposed to know how someone wants to be treated, and err to the side of caution or even ask if they aren't sure is absurd when you genuinely do not understand the concept.
"What, you need consent for everything these days?" Literally yes. And not just these days, but always have and always will.
"Do I need consent to kiss my wife in the morning? Do I need consent to shake someone's hand after a business meeting? Do I need CoNsEnT to braid my daughter's hair?"
Yes, yes and yes. A neurotypical person of reasonably passable social skill should have the ability to either instinctively understand when their touch is welcome, or logically conclude when their touch is socially expected. If you truly, literally, genuinely cannot tell whether your own child delights in you playing with her hair or merely endures it, then yeah, maybe you shouldn't touch anyone at all, ever, before you learn how to do that.
"Do I need consent to make eye contact with strangers on the street? Do I need consent from everyone on board before I get on the bus?"
Okay now you're just throwing a tantrum because someone told you 'no'.
Even those last two questions are hilarious because guess what - even if accidental, eye contact is mutual. If someone looks away, that is them no longer consenting to eye contact, and if you grab their head and force them to look into your eyes that would in fact be a violation of consent! Multiple, actually! And by riding a bus, you are in fact implictly consenting to ride with other people, who are doing the same with you, so you already HAVE their consent. In fact, if you are disruptive or violent, the bus driver can REVOKE consent by kicking you off and/or other passengers can revoke consent by disembarking.
So yes, in fact, everything involving other people requires their consent in some way, shape, or form. That's what forms social mores and folkways! This is the very basis of society! A mix of explicit and implicit consent.
So yeah, they're throwing a tantrum from being told no, and also ignoring sociology 101 while doing so.