blockchain data shows that bitcoin cash did not even make a block until hours later. because they were banned from the core network
a) No one gives a flying fuck when BCH mined its first block. If any forkcoin announces a launch date without changing their network magic, whether their first block has been mined or not, their nodes can and should be disconnected from the BTC network. If you can't understand the reasoning for that and the risks it would present to the network if it wasn't done, then you clearly aren't technically astute enough to comment. That, or your overwhelming bias is preventing you from forming a conclusion that's even remotely sensible once again. It's honestly difficult to tell with you. Are you a zealot, or just ignorant? Maybe it's both. I'm honestly past caring.
b) Even if people did care about when BCH mined its first block, the amusingly long time it took was primarily due to their non-existant hashrate at launch. Hence the need to further alter consensus rules with their Emergency Difficulty Adjustment. That chain would have been dead by the end of the first week if they hadn't altered it. The end result, whether being disconnected before or after mining their first block would have been the same. They were the minority chain. It would never have unfolded any differently, no matter how much you try to blame one dev team for everything. But by all means keep living in the past at the only point in history where you think your worthless opinions meant anything.
c) If you want to change consensus unilaterally with a hardfork, why should you expect to be permitted to remain connected to a network that fundamentally disagrees with you? Say you went to the cinema with friends (an unlikely scenario given that I doubt you have that many friends, but still) to see a movie, but then you decide that instead you want to watch 8 movies in a row. Do you think that everyone else has to stick around until a deadline you've arbitrarily chosen to have a vote to see if everyone agrees with seeing 8 movies? Or is it more likely that the others will simply give you the finger and leave you behind because you're clearly an arsehole for thinking they need to listen to your stupid ideas when they absolutely don't have to (but you do strike me as exactly the kind of person that would try to force them to anyway, given how obscenely obnoxious you are). Get a clue. Just because a forkcoin announces a launch date, it doesn't mean I have to wait until that date to disconnect their node. You don't get to decide that and have a great big "fuck you" if you think you do.