I don’t understand how many business practices by airlines don’t result in criminal charges. Selling so many tickets that you know you will occasionally fail to fulfill your contract should be fraud. Jail time for leadership and full reimbursement of all damages (e.g. private air taxi to still make to to the destination on time) would quicky make the airlines competent at finding voluntary agreements that make everyone happy.
Likewise, deciding that a flight isn’t profitable and cancelling it - WTF. That’s called making a bad business decision, you eat the cost. You don’t just decide “eh, let’s just not” and leave people stranded because it’s cheaper.