Biden tried to delay the support. There’s just not much he can do short of locking down the entire government. The president does not hold absolute authority, and if the parliament and secretary of state are being bitches…
He has sufficient authority to curtail aid to Israel. He can also fire the secretary of state. Congress, not Parliament. He’s angry behind the scenes but unwilling to take action, which may have to do with the ongoing election.
Personally, I hate when people say X should do something. What’s the something? If you don’t know, maybe there isn’t anything that can be done. If you don’t like the options, then why do you want him to act. Politicians aren’t magic, they can’t divine a mystical solution, choices are tough and every option has its drawbacks.
If he’s that dissatisfied with Blinken he can fire him. But if that’s not palatable then he has to stick with him. I assume they talk and Biden has given him direction, so that’s what’s left.
Typically, Parliamentary systems employ a prime minister as the chief executive, so tend to be fundamentally different from the American system.